CN106670395A - Core bar of heavy casting air cavity sand core - Google Patents
Core bar of heavy casting air cavity sand core Download PDFInfo
- Publication number
- CN106670395A CN106670395A CN201710051822.6A CN201710051822A CN106670395A CN 106670395 A CN106670395 A CN 106670395A CN 201710051822 A CN201710051822 A CN 201710051822A CN 106670395 A CN106670395 A CN 106670395A
- Authority
- CN
- China
- Prior art keywords
- mobile jib
- connecting framework
- spoke
- air cavity
- fixedly connected
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/106—Vented or reinforced cores
Abstract
The invention discloses a core bar of a heavy casting air cavity sand core and belongs to the field of core bars. The core bar comprises six main rods and twelve connecting frameworks, wherein the main rods are in parallel, and the projection of the main rods in the direction of the main rods forms a right trapezoid; each of the upper and lower bottom edges of the right trapezoid corresponds to three main rods; the upper ends and the lower ends of the main rods are fixedly connected through the connecting frameworks; the connecting frameworks form two right trapezoids the same as that formed by the projection; the connecting frameworks are mutually perpendicular to the main rods; the core bar is further provided with six spokes; the upper and lower ends of the main rods corresponding to the bottom edges of the right trapezoid are fixedly connected with the main rods on the opposite sides through the spokes; and the spokes and the connecting frameworks are on the same plane. The core bar, provided by the invention, is sufficient in lifting force and steady in hoisting for the heavy casting sand core, high in strength and rigidity, and easy to demould.
Description
Technical field
The present invention relates to arbor field, particularly a kind of heavy castings air cavity sand core rod.
Background technology
Large-scale medium-speed ship box body air cavity core is complex-shaped, and core length is wide 14 meters up to more than 22 meters, large-scale diesel engine
Body air cavity core is oversize due to size, it is impossible to be suitable for core shooter, so coremaking, lifts core, the demoulding is difficult.Existing arbor
Simple structure, lifting power is not strong, unstable in hoisting process, for the hoisting process of heavy castings air cavity core easily comes off,
Intensity and rigidity be not strong, it is easy to damages.
Therefore, a kind of arbor that can simultaneously evade to sum up defect is developed, is technical problem urgently to be resolved hurrily.
The content of the invention
For the problems referred to above, there is provided a kind of heavy castings air cavity sand core rod.The arbor reasonable in design, effectively solving
For large-scale core lifting power is not enough, lift unstable, hoisting process easily comes off, and the demoulding is difficult, and intensity and rigidity are strong,
Easily damaged problem.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：
A kind of heavy castings air cavity sand core rod, including mobile jib and connecting framework, the mobile jib includes for being parallel to each other
One mobile jib, the second mobile jib, the 3rd mobile jib, the 4th mobile jib, the 5th mobile jib and the 6th mobile jib, the connecting framework includes the first connection
Skeleton, the second connecting framework, the 3rd connecting framework, the 4th connecting framework, the 5th connecting framework, the 6th connecting framework, the 7th connect
Synthetism frame, the 8th connecting framework, the 9th connecting framework, the tenth connecting framework, the 11st connecting framework and the 12nd connecting framework；
The mobile jib and it is projected as right-angled trapezium on mobile jib direction, the 4th mobile jib, the 5th mobile jib, the 6th mobile jib correspond to
Short base is projected, first mobile jib, the second mobile jib, the 3rd mobile jib correspond to project long base, the 3rd mobile jib and the 6th
Mobile jib correspond to right-angled trapezium right angle end points；The connecting framework is vertical with mobile jib, and the connecting framework constitutes two phases
Same right-angled trapezium, first connecting framework, the 8th connecting framework are fixedly connected respectively with the first mobile jib, the second mobile jib, institute
State the second downlink connection skeleton, the 9th connecting framework to be fixedly connected with the second mobile jib, the 3rd mobile jib respectively, the 3rd connection bone
Frame, the 7th connecting framework are fixedly connected respectively with the first mobile jib, the 4th mobile jib, the 4th connecting framework, the 12nd connection bone
Frame is fixedly connected respectively with the 4th mobile jib, the 5th mobile jib, and the 5th connecting framework, the 11st connecting framework are led respectively with the 5th
Bar, the 6th mobile jib are fixedly connected, and the 6th connecting framework, the tenth connecting framework are fixed respectively with the 3rd mobile jib, the 6th mobile jib
Connection.
The reasonable in design, lifting power foot, lifting core process is steady, it is easy to the demoulding, and intensity and rigidity are strong, are not easy to
Damage, it is reusable, reduce casting cost.
Preferably, the arbor also sets six roots of sensation spoke, the spoke include the first spoke, the second spoke, the 3rd spoke, the
Four spokes, the 5th spoke and the 6th spoke, the spoke is with the connecting framework in approximately the same plane；First spoke,
Four spokes are fixedly connected respectively with the second mobile jib, the 4th mobile jib, second spoke, the 5th spoke respectively with the second mobile jib,
Five mobile jibs are fixedly connected, and the 3rd spoke, the 6th spoke are fixedly connected respectively with the 3rd mobile jib, the 5th mobile jib.
This structure can increase the intensity and rigidity of arbor, and pulling force effectively can be distributed on spoke, it is to avoid somewhere pulling force mistake
Arbor is caused to damage greatly.
Preferably, set a suspension ring plate in the middle of first mobile jib, the 3rd mobile jib respectively and be secured to connection.
Preferably, the suspension ring plate shape is rectangle, and centre position is provided with circular lifting eye.
Rectangle effectively increases bonding area, increases tensile strength, and center offers lifting eye, can facilitate hook
Through lifting.
Preferably, it is described to be fixedly connected all for welding.
Preferably, the mobile jib, connecting framework and spoke are steel pipe.
Preferably, the mobile jib, connecting framework and spoke are equipped with steam vent.
Preferably, the mobile jib, connecting framework and spoke are equipped with exhaust passage and communicate with steam vent.
Be conducive to the discharge of gas in casting process, improve casting quality.
Preferably, the 4th mobile jib, the 5th mobile jib and the 6th mobile jib bottom set respectively two round boss, the boss
Contour and one rectangle of composition.
Be conducive to the placement of arbor, it is to avoid the abrasion of arbor main part.
Due to adopting above-mentioned technical proposal, the invention has the advantages that：
1. rationally, lifting power is strong for present configuration, and lifting is carried steady during core, it is easy to the demoulding.
2. intensity of the present invention is good, and rigidity is good, can recycle, and lowers foundry goods manufacturing cost.
3. it is easy to exhaust in casting process of the present invention, improves casting quality.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the suspension ring plate schematic diagram of the present invention.
Fig. 3 is the core front schematic view of the present invention.
Fig. 4 is core schematic rear view of the present invention.
Fig. 5 is that the arbor of the present invention installs and uses schematic diagram.
In accompanying drawing, the mobile jibs of 11- first, the mobile jibs of 12- second, the mobile jibs of 13- the 3rd, the mobile jibs of 14- the 4th, the mobile jibs of 15- the 5th,
The mobile jibs of 16- the 6th, the connecting frameworks of 21- first, the connecting frameworks of 22- second, the connecting frameworks of 23- the 3rd, the connecting frameworks of 24- the 4th,
The connecting frameworks of 25- the 5th, the connecting frameworks of 26- the 6th, the connecting frameworks of 27- the 7th, the connecting frameworks of 28- the 8th, the connection bones of 29- the 9th
Frame, the connecting frameworks of 210- the tenth, the connecting frameworks of 211- the 11st, the connecting frameworks of 212- the 12nd, the spokes of 31- first, 32- second
Spoke, the spokes of 33- the 3rd, the spokes of 34- the 4th, the spokes of 35- the 5th, the spokes of 36- the 6th, 4- suspension ring plates, 41- lifting hole(eyelet)s, 5- cores,
6- core molds, 7- self-hardening sands, 8- boss.
Specific embodiment
Below in conjunction with accompanying drawing to invention be embodied as further illustrate.
As shown in figure 1, a kind of heavy castings air cavity sand core rod, including mobile jib and connecting framework, mobile jib includes mutually flat
Capable the first mobile jib 11, the second mobile jib 12, the 3rd mobile jib 13, the 4th mobile jib 14, the 5th mobile jib 15 and the 6th mobile jib 16, connect bone
Frame includes the first connecting framework 21, the second connecting framework 22, the 3rd connecting framework 23, the connection bone of the 4th connecting framework the 24, the 5th
Frame 25, the 6th connecting framework 26, the 7th connecting framework 27, the 8th connecting framework 28, the 9th connecting framework 29, the tenth connecting framework
210th, the 11st connecting framework 211 and the 12nd connecting framework 212.Mobile jib is projected as right-angled trapezium on mobile jib direction, and
Four mobile jibs 14, the 5th mobile jib 15, the 6th mobile jib 16 correspond to project short base, the first mobile jib 11, the second mobile jib 12, the 3rd mobile jib
13 correspond to project long base, and the 3rd mobile jib 13 and the 6th mobile jib 16 correspond to right-angled trapezium right angle end points, connecting framework and master
Bar is vertical, and connecting framework constitutes two identical right-angled trapeziums.First connecting framework 21, the 8th connecting framework 28 are respectively with first
Mobile jib 11, the second mobile jib 12 are fixedly connected；Second downlink connection skeleton 22, the 9th connecting framework 29 respectively with the second mobile jib 12,
Three mobile jibs 13 are fixedly connected；3rd connecting framework 23, the 7th connecting framework 27 are fixed respectively with the first mobile jib 11, the 4th mobile jib 14
Connection；4th connecting framework 24, the 12nd connecting framework 212 are fixedly connected respectively with the 4th mobile jib 14, the 5th mobile jib 15；5th
Connecting framework 25, the 11st connecting framework 211 are fixedly connected respectively with the 5th mobile jib 15, the 6th mobile jib 16；6th connecting framework
26th, the tenth connecting framework 210 is fixedly connected respectively with the 3rd mobile jib 13, the 6th mobile jib 16.
The present embodiment adopts right-angled trapezium, maintains a certain distance with the appearance profile of core 5, it is to avoid touch the table for wearing core 5
Face.The arbor structure is divided into upper and lower two parts with six roots of sensation mobile jib to support, and the weight for making core 5 uniformly shares six roots of sensation mobile jib
On, and be connected by 12 connecting frameworks, increase the bearing capacity of the arbor.So as to arbor, the structure is reasonable in design, lifting power
Foot, lifting core process is steady, it is easy to the demoulding, and intensity and rigidity are strong, is not easy to damage, reusable, reduces casting cost.
The arbor also sets six roots of sensation spoke, including the first spoke 31, the second spoke 32, the 3rd spoke 33, the 4th spoke 34,
Five spokes 35 and the 6th spoke 36, spoke is with the connecting framework in approximately the same plane.First spoke 31, the 4th spoke 34 are distinguished
It is fixedly connected with the second mobile jib 12, the 4th mobile jib 14；Second spoke 32, the 5th spoke 35 are led respectively with the second mobile jib the 12, the 5th
Bar 15 is fixedly connected；3rd spoke 33, the 6th spoke 36 are fixedly connected respectively with the 3rd mobile jib 13, the 5th mobile jib 15.
Spoke increases the intensity and rigidity of arbor, pulling force effectively can be distributed on spoke, it is to avoid somewhere pulling force is excessive to lead
Arbor is caused to damage.
It can be spirally connected, rivet, welding more than to be fixedly connected, and the present embodiment takes welding, and the fixed form of welding is more
For firm, use time is longer.Mobile jib, connecting framework and spoke are steel pipe and are provided with steam vent, and cast iron arbor fragility is big, hold
Fragile, higher using cast iron arbor cost, steel pipe rigidity is strong, is hardly damaged, can Reusability；Steam vent and mobile jib, company
Discharge duct in synthetism frame and spoke is communicated, and is conducive to casting process to have gas to discharge, and improves casting quality.4th mobile jib,
5th mobile jib and the 6th mobile jib bottom set respectively two round boss 8, and six boss 8 are contour and constitute a rectangle.So as to
Facilitate the storage of arbor, prevent the abrasion of arbor.
As shown in Fig. 2 setting a suspension ring plate in the middle of the first mobile jib 11 and the 3rd mobile jib 13 respectively, suspension ring plate 4 is located at the mobile jib
Center, by being welded to connect, the center of gravity that can make arbor is located at center, is conducive to lifting balance.
Suspension ring plate 4 is shaped as rectangle, can effectively increase bonding area, increases tensile strength, and center has offered
Lifting hole(eyelet) 41, can facilitate hook through lifting.
When using, as shown in figure 5, arbor rope is fixed in two fix bars first, fix bar is lifted and is placed in
The top surface of core mold 6, is laid flat fixation.Arbor just hangs on mould inside relevant position.Self-hardening sand 7 is inserted into core mold 6, directly
To filling up.Harden through the self-hardening sands of several hours, arbor has been secured firmly to inside self-hardening sand 7, fix bar is torn open
Remove, remove mould, using arbor of slinging by lifting machine, core 5 is lifted.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this
Bright patent claim, the equal change completed under the technical spirit suggested by all present invention or modification change, all should belong to
Cover the scope of the claims in the present invention.
Claims (9)
1. a kind of heavy castings air cavity sand core rod, it is characterised in that：Including mobile jib and connecting framework, the mobile jib includes mutual
Parallel the first mobile jib, the second mobile jib, the 3rd mobile jib, the 4th mobile jib, the 5th mobile jib and the 6th mobile jib, the connecting framework includes
First connecting framework, the second connecting framework, the 3rd connecting framework, the 4th connecting framework, the 5th connecting framework, the 6th connection bone
Frame, the 7th connecting framework, the 8th connecting framework, the 9th connecting framework, the tenth connecting framework, the 11st connecting framework and the 12nd
Connecting framework；The mobile jib is projected as right-angled trapezium, the 4th mobile jib, the 5th mobile jib, the 6th mobile jib on mobile jib direction
Correspond to project short base, first mobile jib, the second mobile jib, the 3rd mobile jib correspond to project long base, the 3rd mobile jib
Right-angled trapezium right angle end points is correspond to the 6th mobile jib；The connecting framework is vertical with mobile jib, the connecting framework composition
Two identical right-angled trapeziums, first connecting framework, the 8th connecting framework are fixed with the first mobile jib, the second mobile jib connect respectively
Connect, the second downlink connection skeleton, the 9th connecting framework are fixedly connected respectively with the second mobile jib, the 3rd mobile jib, the described 3rd connects
Synthetism frame, the 7th connecting framework are fixedly connected respectively with the first mobile jib, the 4th mobile jib, and the 4th connecting framework, the 12nd connect
Synthetism frame is fixedly connected respectively with the 4th mobile jib, the 5th mobile jib, and the 5th connecting framework, the 11st connecting framework are respectively with
Five mobile jibs, the 6th mobile jib are fixedly connected, the 6th connecting framework, the tenth connecting framework respectively with the 3rd mobile jib, the 6th mobile jib
It is fixedly connected.
2. a kind of heavy castings air cavity sand core rod according to claim 1, it is characterised in that：The arbor also sets the six roots of sensation
Spoke, the spoke includes the first spoke, the second spoke, the 3rd spoke, the 4th spoke, the 5th spoke and the 6th spoke, described
Spoke is with the connecting framework in approximately the same plane；First spoke, the 4th spoke are consolidated respectively with the second mobile jib, the 4th mobile jib
Fixed connection, second spoke, the 5th spoke are fixedly connected respectively with the second mobile jib, the 5th mobile jib, the 3rd spoke, the 6th
Spoke is fixedly connected respectively with the 3rd mobile jib, the 5th mobile jib.
3. a kind of heavy castings air cavity sand core rod according to claim 1, it is characterised in that：First mobile jib,
Set a suspension ring plate in the middle of three mobile jibs respectively and be secured to connection.
4. a kind of heavy castings air cavity sand core rod according to claim 3, it is characterised in that：The suspension ring plate shape is
Rectangle, centre position is provided with circular lifting eye.
5. a kind of heavy castings air cavity sand core rod according to claim 1,2 or 3, it is characterised in that：The fixation is even
Connect all for welding.
6. a kind of heavy castings air cavity sand core rod according to claim 1 and 2, it is characterised in that：The mobile jib, connection
Skeleton and spoke are steel pipe.
7. a kind of heavy castings air cavity sand core rod according to claim 1 and 2, it is characterised in that：The mobile jib, connection
Skeleton and spoke are equipped with steam vent.
8. a kind of heavy castings air cavity sand core rod according to claim 7, it is characterised in that：The mobile jib, connection bone
Frame and spoke are equipped with exhaust passage and communicate with steam vent.
9. a kind of heavy castings air cavity sand core rod according to claim 1, it is characterised in that：4th mobile jib,
Five mobile jibs and the 6th mobile jib bottom set respectively two round boss, and the boss is contour and constitutes a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051822.6A CN106670395B (en) | 2017-01-20 | 2017-01-20 | A kind of heavy castings air cavity sand core rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051822.6A CN106670395B (en) | 2017-01-20 | 2017-01-20 | A kind of heavy castings air cavity sand core rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106670395A true CN106670395A (en) | 2017-05-17 |
| CN106670395B CN106670395B (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710051822.6A Expired - Fee Related CN106670395B (en) | 2017-01-20 | 2017-01-20 | A kind of heavy castings air cavity sand core rod |
Country Status (1)
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| CN (1) | CN106670395B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107824746A (en) * | 2017-11-02 | 2018-03-23 | 广西玉柴机器股份有限公司 | The arbor component of ship machine cross gate core |
| CN110142379A (en) * | 2019-04-18 | 2019-08-20 | 共享铸钢有限公司 | A kind of profile-followed arbor structure of the high intensity of blade of large-sized water turbine sand core |
| CN110465624A (en) * | 2019-09-19 | 2019-11-19 | 广西玉柴机器股份有限公司 | A kind of the ultra-large type craft core mould and core-making method of V-type engine cylinder block |
| CN110899641A (en) * | 2019-12-18 | 2020-03-24 | 北京机科国创轻量化科学研究院有限公司 | Digital flexible extrusion sand mould type bone structure and lift by crane mechanism |
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| CN110465624A (en) * | 2019-09-19 | 2019-11-19 | 广西玉柴机器股份有限公司 | A kind of the ultra-large type craft core mould and core-making method of V-type engine cylinder block |
| CN110899641A (en) * | 2019-12-18 | 2020-03-24 | 北京机科国创轻量化科学研究院有限公司 | Digital flexible extrusion sand mould type bone structure and lift by crane mechanism |
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| Publication number | Publication date |
|---|---|
| CN106670395B (en) | 2018-10-12 |
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