CN105252235A - Remanufacturing method for laser additives of cantilever rack of offshore drilling platform - Google Patents
Remanufacturing method for laser additives of cantilever rack of offshore drilling platform Download PDFInfo
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- CN105252235A CN105252235A CN201510592974.8A CN201510592974A CN105252235A CN 105252235 A CN105252235 A CN 105252235A CN 201510592974 A CN201510592974 A CN 201510592974A CN 105252235 A CN105252235 A CN 105252235A
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- CN
- China
- Prior art keywords
- tooth bar
- tooth
- drilling platform
- cantilever beam
- offshore drilling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a remanufacturing method for laser additives of a cantilever rack of an offshore drilling platform. The remanufacturing method includes the steps that the corroded portions, abraded portions, plastically deformed portions, fatigue metal layers and other damaged portions of the rack surface of the cantilever rack are cleaned up; strip-shaped alloy rack materials are designed and manufactured; a laser processing unit and a robot are used for converting the three-dimensional rack surface of the strip-shaped rack to be a two-dimensional plane, so that the tooth shape of the rack surface is quickly formed in a two-dimensional overlapping mode; and an alloy layer of a certain preset thickness is formed on the rack surface. The laser additive remanufacturing technology is successfully applied to racks of a cantilever moving device of the drilling platform, so that the convenience that the drilling platform can be constructed when operating normally offshore without being shut down to enter a dock is achieved. The remanufacturing method has the characteristics of being rapid, convenient to use, safe, environmentally friendly, safe and reliable in quality, and capable of saving materials, reducing the cost and improving the production efficiency, saves expenses for users and creates better economic benefits.
Description
Technical field
The present invention relates to marine drilling platform production equipment and manufacture field, be specifically related to a kind of offshore drilling platform cantilever beam tooth bar laser gain material reproducing method.
Background technology
Drilling platforms is a kind of boats and ships formula machinery device of offshore oil exploitation, cantilever beam mobile device is the heavy load mobile system device that on carrying drilling platforms, whole drilling rig system carries out operation element, and cantilever beam mobile rack is the key member of main load-bearing and apparatus system movement.Under working environment severe on ocean, through use all the year round, cantilever beam mobile rack suffers the corrosion of marine environment, bear the damage regime under heavy load, there occurs serious corrosion and wearing and tearing, with through there is a large amount of flank of tooth plastic deformation in partial racks, about platform both sides, about to have the tooth of 50% to be worn down to pointed for two cantilever beam tooth bars.In moving process, have obvious abnormal sound sound, cantilever beam mobile device and drilling rig system produce vibration, have a strong impact on normal operation, bring hidden danger also to the safety of platform.
Traditional maintenance mode changes cantilever beam tooth bar.The each length 18 ~ 20m of left and right, platform both sides cantilever beam tooth bar, adopt ASTMA514 high intensity for ship steel making, manufacturing expense is expensive.And drilling platforms needs to stop Large Ship Dock just can carry out replacement operation construction, and the cycle that stops production is long, needs to compose out to stop depressed place and operating expenses in a large number, also have impact on the production operation efficiency of drilling platforms.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of offshore drilling platform cantilever beam tooth bar laser gain material reproducing method, it can achieve drilling platforms and need not stop production into dock, the facility of constructing can be carried out at sea under normal operating conditions, there is quick, convenient, safe feature.
In order to solve the problem, the present invention by the following technical solutions: a kind of offshore drilling platform cantilever beam tooth bar laser gain material reproducing method, its manufacturing technology steps is:
1, the damaged positions such as the corrosion of cantilever beam tooth surface of rack, wearing and tearing, plastic deformation and tired metal level are cleared up;
2, the banded carbide button strip material of Design and manufacture;
3, utilize Laser Processing unit and robot to convert the banded tooth bar 3 D stereo flank of tooth to two dimensional surface, realize two dimension superposition Quick-forming flank of tooth profile of tooth and manufacture, form the alloy material layers of certain predetermined thickness layer at the flank of tooth;
Ni, Mo, Nb metallic element is added in described banded alloy tooth bar;
Described banded alloy tooth bar is of a size of 12 × 1.2mm;
Described Laser Processing unit is semiconductor couple optical fiber, and power is 4KW;
Described Laser Processing unit adopts 15 × 2.0mm broad band laser bundle, adopts 1.2 × 10
4w/cm
2laser power density, robot driving laser is by the walking of 500 ~ 760mm/min speed;
In described banded alloy tooth bar process, adopt crawler type heater, to homogeneous heating 150 DEG C ~ 160 DEG C within the scope of Gear shape process district and surrounding 30mm;
Described banded carbide button strip adoption portable small-sized grinding machine carries out the accurate control prototype grinding forming of tooth bar profile of tooth;
Described tooth bar tooth proportions and precision have the single tooth of tooth bar profile of tooth and the flute profile standard detection block tool across three space widths by three-dimensional, coordinate other general tooth profile detector to control.
Implement technical scheme of the present invention, there is following beneficial effect: laser gain material re-manufacturing technology is successful Application on drilling platforms cantilever beam mobile device tooth bar, achieve drilling platforms need not stop production into dock, the facility of constructing can be carried out at sea under normal operating conditions, there is quick, convenient, safe feature.Also possessed simultaneously environmental protection, material-saving, quality safety reliable, reduce costs, the advantage of enhancing productivity, save financial charges for client and create better economic benefit.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Group of CNOOC is positioned at the cantilever beam mobile device tooth bar of Bohai Sea drilling platforms, and because long-term operation is in maritime environment, cantilever beam tooth bar there occurs corrosion, heavy wear, about has the tooth surface of rack plastic deformation of nearly 50%, and most of tooth crest has become pointed.In moving process, produce obvious abnormal sound and vibration, affect normal drilling operability, the safety of critical drilling platforms.
Adopt laser gain material re-manufacturing technology process of the present invention, platform carries out Quick-forming to tooth bar and increases material manufacture.Use 4KW semiconductor couple optical-fiber laser processing combination and robot to process tooth bar, technological parameter is: select 15 × 2.0mm broad band laser bundle, adopt 1.2 × 10
4w/cm
2laser power density, the 600mm/min speed walking of robot drive laser beam, tooth surface of rack is carried out two dimension superposition Quick-forming and closely only manufactures.In process, use tracklayer heater to be preheating to 150 DEG C ~ 160 DEG C within the scope of tooth bar processing district and surrounding 30mm, in this temperature range, carry out laser increase material manufacture fast.Then, use small-size rack Portable grinding processing machine to recover profile of tooth, adopt the self-control monodentate of three-dimensional profile of tooth and the standard detection block tool across three space widths, control and detect tooth bar size and precision.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any people being familiar with this technology is in the technical scope disclosed by the present invention; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (8)
1. an offshore drilling platform cantilever beam tooth bar laser gain material reproducing method, is characterized in that: its manufacturing technology steps is: the damaged positions such as the corrosion of cleaning cantilever beam tooth surface of rack, wearing and tearing, plastic deformation and tired metal level; The banded carbide button strip material of Design and manufacture; Utilize Laser Processing unit and robot to convert the banded tooth bar 3 D stereo flank of tooth to two dimensional surface, realize two dimension superposition Quick-forming flank of tooth profile of tooth and manufacture, form the alloy material layers of certain predetermined thickness layer at the flank of tooth.
2. offshore drilling platform cantilever beam tooth bar laser gain material reproducing method according to claim 1, is characterized in that: add Ni, Mo, Nb metallic element in described banded alloy tooth bar.
3. offshore drilling platform cantilever beam tooth bar laser gain material reproducing method according to claim 1, is characterized in that: described banded alloy tooth bar is of a size of 12 × 1.2mm.
4. offshore drilling platform cantilever beam tooth bar laser gain material reproducing method according to claim 1, it is characterized in that: described Laser Processing unit is semiconductor couple optical fiber, power is 4KW.
5. offshore drilling platform cantilever beam tooth bar laser gain material reproducing method according to claim 1, is characterized in that: described Laser Processing unit adopts 15 × 2.0mm broad band laser bundle, adopts 1.2 × 10
4w/cm
2laser power density, robot driving laser is by the walking of 500 ~ 760mm/min speed.
6. offshore drilling platform cantilever beam tooth bar laser gain material reproducing method according to claim 1, it is characterized in that: in described banded alloy tooth bar process, adopt crawler type heater, to homogeneous heating 150 DEG C ~ 160 DEG C within the scope of Gear shape process district and surrounding 30mm.
7. offshore drilling platform cantilever beam tooth bar laser gain material reproducing method according to claim 1, is characterized in that: described banded carbide button strip adoption portable small-sized grinding machine carries out the accurate control prototype grinding forming of tooth bar profile of tooth.
8. offshore drilling platform cantilever beam tooth bar laser gain material reproducing method according to claim 1, it is characterized in that: tooth bar tooth proportions and precision have the single tooth of tooth bar profile of tooth and the flute profile standard detection block tool across three space widths by three-dimensional, coordinate other general tooth profile detector to control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510592974.8A CN105252235A (en) | 2015-09-17 | 2015-09-17 | Remanufacturing method for laser additives of cantilever rack of offshore drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510592974.8A CN105252235A (en) | 2015-09-17 | 2015-09-17 | Remanufacturing method for laser additives of cantilever rack of offshore drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105252235A true CN105252235A (en) | 2016-01-20 |
Family
ID=55092327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510592974.8A Pending CN105252235A (en) | 2015-09-17 | 2015-09-17 | Remanufacturing method for laser additives of cantilever rack of offshore drilling platform |
Country Status (1)
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| CN (1) | CN105252235A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001924A (en) * | 2016-05-30 | 2016-10-12 | 远利（天津）海业机械工程有限公司 | Laser additive remanufacturing and erosion-resistant surface strengthening technological method for erosive abraded precision workpiece in drilling tool of directional well |
-
2015
- 2015-09-17 CN CN201510592974.8A patent/CN105252235A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001924A (en) * | 2016-05-30 | 2016-10-12 | 远利（天津）海业机械工程有限公司 | Laser additive remanufacturing and erosion-resistant surface strengthening technological method for erosive abraded precision workpiece in drilling tool of directional well |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160120 |