CN116197066A - Device for protecting circular flange machining surface of marine diesel engine - Google Patents
Device for protecting circular flange machining surface of marine diesel engine Download PDFInfo
- Publication number
- CN116197066A CN116197066A CN202111446273.5A CN202111446273A CN116197066A CN 116197066 A CN116197066 A CN 116197066A CN 202111446273 A CN202111446273 A CN 202111446273A CN 116197066 A CN116197066 A CN 116197066A
- Authority
- CN
- China
- Prior art keywords
- flange
- flange body
- diesel engine
- marine diesel
- bolt
- 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
- 238000003754 machining Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 239000003973 paint Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 210000001503 joint Anatomy 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention relates to the technical field of flange processing surface protection devices, and discloses a device for protecting a circular flange processing surface of a marine diesel engine, which comprises a flange body, wherein rubber sleeves are respectively arranged on two sides of the flange body, an M12 bolt is screwed on the middle part of the left side of the flange body in a threaded manner, an M12 bolt is screwed on the upper part and the lower part of the right side of the flange body in a threaded manner, and protection sheets are respectively arranged on the top ends of the M12 bolts in a threaded manner. The M12 bolts additionally arranged penetrate through the two protection sheets and are screwed up by the screw hole cylindrical blocks in the flange inner diameter holes, so that the protection sheets are tightly attached to the machining surfaces of the two flanges, the damage to the flanges can be reduced to the greatest extent by the installation mode, the procedures of cleaning paint and removing steel shots in the flange screw holes are eliminated on the basis that the assembly and welding of the parts are not affected and the size and roughness of the parts are guaranteed, and the product quality can be improved and the cost can be saved.
Description
Technical Field
The invention relates to the technical field of flange machining surface protection devices, in particular to a device for protecting a circular flange machining surface of a marine diesel engine.
Background
The marine diesel engine is a heart of a ship, the flange is an important part for connecting a pipeline and a door cover on the marine diesel engine, and the roughness of the flange surface can directly influence the air tightness, fuel oil, coolant and the like flowing on the marine diesel engine. The circular flanges on marine diesel engines are very many, and the dimensional specification is quite different. Under the condition that the mounting precision of the flange is ensured and the roughness of the surface of the flange is ensured, part of the flange is processed before welding, the flange surface is machined to the drawing precision before the production of the part, and the machining is not performed after the assembly.
Common processed flanges show signs of damage such as deformation, wear, scuffing, etc. during turning over, transferring and grit blasting of the component. The damaged flange can have the problems of inaccurate flange butt joint, misplaced screwing of bolts, and the like in the subsequent assembly. These problems all lead to reworking of the product, labor consumption, delay of construction period, increase of process cost, and failure of meeting the working requirements of the device for protecting the circular flange processing surface of the marine diesel engine; in order to avoid that the machined flange is not damaged after assembly, the patent researches a device for protecting the machining surface of the circular flange of the marine diesel engine. The device can be installed before the machined flange is assembled, and then disassembled after the sand blasting paint is finished, so that the roughness of the flange surface can be guaranteed, the protection device can be reused, and a large amount of cost is saved.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a device for protecting the circular flange processing surface of a marine diesel engine, which aims to solve the problems in the prior art.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a device for marine diesel engine circular flange machined surface protection, includes the flange body, rubber sleeve has all been installed to the both sides of flange body, the left side middle part screw thread of flange body has connect the M12 bolt soon, the right side upper portion and the lower part of flange body also have all screw thread to connect the M12 bolt soon, the protection piece has all been installed through the screw thread on the top of M12 bolt.
Preferably, a screw hole cylindrical block is transversely arranged in the middle of the flange body and is matched with the position and the size of the M12 bolt positioned on the left side.
Preferably, screw hole cylindrical blocks are transversely arranged on the upper part and the lower part of the flange body, and are matched with the positions and the sizes of two M12 bolts positioned on the right side.
Preferably, both ends of the screw hole cylindrical block penetrate through the surface of the rubber sleeve.
Preferably, the surface of the protection sheet is carved with positioning mark lines.
Preferably, a positioning center line is carved on the surface of the flange body, and the positioning center line is matched with the position of the positioning mark line.
(III) beneficial effects
Compared with the prior art, the invention provides a device for protecting the circular flange processing surface of a marine diesel engine, which has the following beneficial effects:
this a device for marine diesel engine circular flange machined surface protection, M12 bolt that adds establishes passes the screw cylinder piece of two protection pieces in the flange internal diameter hole and screws up to make the machined surface of protection piece and two flanges laminate tightly, this kind of mounting means can furthest reduce the damage that the flange received, on the basis that does not influence part assembly and welding and guarantee part size and roughness, has got rid of the process of clearance paint and removal flange screw hole interior shot, can improve product quality and save cost.
Drawings
FIG. 1 is a left side schematic view of the present invention;
FIG. 2 is a right side view of the present invention;
fig. 3 is a schematic structural view of the protective sheet of the present invention.
In the figure: 1. a flange body; 2. a rubber sleeve; 3. an M12 bolt; 4. a protective sheet; 5. screw hole cylindrical blocks; 6. positioning a marking line; 7. and positioning a center line.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme, a device for protecting a circular flange processing surface of a marine diesel engine, which comprises a flange body 1, a rubber sleeve 2, M12 bolts 3, a protection sheet 4, a screw hole cylindrical block 5, a positioning mark line 6 and a positioning center line 7, wherein the rubber sleeve 2 is arranged on two sides of the flange body 1, the M12 bolts 3 are screwed in the middle of the left side of the flange body 1, the M12 bolts 3 are screwed in the upper part and the lower part of the right side of the flange body 1, the protection sheet 4 is arranged on the top end of each M12 bolt 3 through threads, the screw hole cylindrical block 5 is transversely arranged in the middle of the flange body 1, the position and the size of each M12 bolt 3 are matched with those of the left side, the M12 bolts 3 penetrate through the screw hole cylindrical block 5 of the two protection sheets 4 in an inner diameter hole of the flange body 1, so that the protection sheet 4 is attached to the processing surface of the flange body 1, the damage to the flange body 1 can be reduced to the greatest extent, the upper part and the lower part of the flange body 1 are transversely provided with the screw hole 5, the positioning mark line 6 is arranged on the two sides of the two protection sheets 6, and the positioning center line 7 is matched with the two surfaces of the two positioning mark lines 6 and the two surfaces 2 are matched with the positions of the two cylindrical blocks 3, and the positioning center line 6 is matched with the positions of the two positioning center line 2 on the two surfaces of the surface 1.
The working principle of the device is as follows: the circular flange body 1 on the marine diesel engine is processed to the shape and the size required by the drawing when the parts are fed, the holes on the flange body 1 are also processed in advance, before the protection device is installed, the positioning center line 7 of the flange body 1 is firstly scratched, then the protection sheet 4 is installed on the flange body 1, firstly, the rubber sleeve 2 with the proper size is found according to the inner diameter size of the flange body 1, then the rubber sleeve 2 is sleeved on the screw hole cylindrical block 5, then the protection sheets 4 with two holes are connected with the screw hole cylindrical block 5 by the M12 bolts 3, then the screw hole cylindrical block 5 is embedded into the inner diameter of the flange body 1,
the protection sheet 4 is rotated, so that the positioning mark line 6 on the protection sheet 4 is overlapped with the positioning center line 7 on the flange body 1, and finally, an M12 bolt 3 passes through the other protection sheet 4 and is screwed into the screw hole cylindrical block 5, and the whole flange body 1 protection device is installed, because the screw hole on the flange body 1 is blocked by the protection sheet 4 when the flange body 1 is installed, the positioning mark on the protection device is calibrated in advance, and the assembly dimension precision of the circular flange can be ensured, and the specific operation steps are as follows:
step one, processing the circular flange to the appearance and the size required by the drawing during blanking
The circular flange on the marine diesel engine is manufactured according to the dimension required by the drawing when being fed, machining allowance is not reserved in the thickness direction, and the roughness requirement of the surface of the flange body 1 is machined according to the drawing requirement.
Step two, a positioning center line 7 is marked on the circular flange
According to the assembly requirements of the drawing, a positioning center line 7 is marked on the circular flange.
Step three, mounting a device for protecting the processing surface of the circular flange on the flange body 1
Finding out a rubber sleeve 2 with a proper size according to the inner diameter size of a flange body 1, sleeving the rubber sleeve 2 on a screw hole cylindrical block 5, connecting a protection piece 4 with two holes through an M12 bolt 3 and the screw hole cylindrical block 5, embedding the screw hole cylindrical block 5 into the inner diameter of the flange body 1, rotating the protection piece 4 to enable a positioning mark line 6 on the protection piece 4 to coincide with a positioning center line 7 on the flange body 1, and finally penetrating another protection piece 4 through an M12 bolt 3 to screw into the screw hole cylindrical block 5, so that the whole flange protection device is installed, and installing the flange body 1 on a component through a positioning mark on the circular flange protection piece 4 and the installation size on a drawing.
Step five, dismantle circular flange machined surface protection's device
And unscrewing the protection sheet 4 of the single M12 bolt 3 by using a wrench, removing the M12 bolt 3 and the protection sheet 4, then extracting the rest protection device from the other surface, and removing the parts.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a device for marine diesel engine circular flange machined surface protection, includes flange body (1), its characterized in that: rubber sleeve (2) have all been installed to the both sides of flange body (1), M12 bolt (3) have been screwed in the left side middle part screw thread of flange body (1), M12 bolt (3) have also all been screwed in right side upper portion and lower part of flange body (1), protection piece (4) have all been installed through the screw thread on the top of M12 bolt (3).
2. A device for protecting a marine diesel engine circular flange finish according to claim 1, wherein: the middle part of the flange body (1) is transversely provided with a screw hole cylindrical block (5) which is matched with the position and the size of the M12 bolt (3) positioned on the left side.
3. A device for protecting a marine diesel engine circular flange finish according to claim 1, wherein: screw hole cylindrical blocks (5) are transversely arranged on the upper portion and the lower portion of the flange body (1), and are matched with the positions and the sizes of two M12 bolts (3) located on the right side.
4. A device for protecting a marine diesel engine circular flange finish according to claim 2, wherein: both ends of the screw hole cylindrical block (5) penetrate through the surface of the rubber sleeve (2).
5. A device for protecting a marine diesel engine circular flange finish according to claim 1, wherein: the surface of the protection sheet (4) is carved with a positioning mark line (6).
6. A device for protecting a marine diesel engine circular flange finish according to claim 5, wherein: the surface of the flange body (1) is carved with a positioning center line (7), and the positioning center line (7) is matched with the position of the positioning marking line (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111446273.5A CN116197066A (en) | 2021-11-30 | 2021-11-30 | Device for protecting circular flange machining surface of marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111446273.5A CN116197066A (en) | 2021-11-30 | 2021-11-30 | Device for protecting circular flange machining surface of marine diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116197066A true CN116197066A (en) | 2023-06-02 |
Family
ID=86516035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111446273.5A Pending CN116197066A (en) | 2021-11-30 | 2021-11-30 | Device for protecting circular flange machining surface of marine diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116197066A (en) |
-
2021
- 2021-11-30 CN CN202111446273.5A patent/CN116197066A/en active Pending
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