CN106670394B - A kind of diesel engine main body sand core - Google Patents
A kind of diesel engine main body sand core Download PDFInfo
- Publication number
- CN106670394B CN106670394B CN201710044802.6A CN201710044802A CN106670394B CN 106670394 B CN106670394 B CN 106670394B CN 201710044802 A CN201710044802 A CN 201710044802A CN 106670394 B CN106670394 B CN 106670394B
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- sand core
- extension
- main body
- protrusion
- face
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Classifications
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- 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
- B22C9/103—Multipart cores
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of diesel engine main body sand cores, belong to casting part field.The present invention includes mutual close-fitting left sand core and right sand core.Left sand core includes left sand core main body, be arranged left sand core body top the first extension and the second extension in left sand core body top is set.Right sand core includes right sand core main body, be arranged right sand core body top third extension and the 4th extension in right sand core body top is set.The configuration of the present invention is simple, intensity is high, and sand core internal is emptied, and has degassing function, and sand core weight is greatly lowered, and saves raw material, mitigates working strength, saves casting manufacturing cost.
Description
Technical field
The present invention relates to casting part field, especially a kind of diesel engine main body sand core.
Background technology
Large diesel engine main body sand core, sand core main body is big, and large diesel engine large body sand core sand using amount is big, sand core weight,
It wastes raw material, castings production is of high cost.Large diesel engine main body sand core, sand core main body is big, and the gas in sand core is not easy to be discharged, high
After warm molten metal pours into casting mold, these gases can expand, if cannot smoothly be discharged, it will casting is made to generate stomata, misrun etc.
Defect.The sand core being made of more than two sand cores, gap generation is had between each sand core, these gaps are glued in casting
Conjunction is not close, and casting liquid can penetrate into gap, emptied in position even into sand core, cause the defect of casting.
Invention content
The goal of the invention of the present invention is, in view of the above-mentioned problems, providing a kind of diesel engine main body sand core, it is therefore intended that as far as possible
Reduction molding sand and other raw materials dosage, can also mitigate the total weight of sand core, mitigate workload, save casting cost；It solves
Large-scale sand core venting quality is bad, reduce in casting because be vented it is bad caused by misrun, the defects of stomata；It solves by two or more
Sand core composition sand core between the problem of having gap, reach that castability is more preferable, the precision higher of casting.
In order to achieve the above objectives, the technical solution adopted in the present invention is：
A kind of diesel engine main body sand core：Including the left sand core mutually combined closely and right sand core, it is characterised in that：
The left sand core includes left sand core main body, is arranged in the first extension of left sand core body top and setting in left sand
Second extension of core body top；The left sand core main body, the first extension and the second extension correspond to the end face of right sand core
Concordantly, and the first faying face is formed；Left sand core main body, the first extension and the second extension are set respectively on first faying face
It sets groove and connects to form the first groove, left sand core main body, the first extension and the second extension on first faying face
Position She Zhi not emptied and be connected to form first and empty portion；Several first row stomatas are provided with below the left sand core main body, it is described
First row stomata is connected with first portion of emptying；The first protrusion, first protrusion end face are provided in the left sand core main body
It is concordant with the first faying face；The second groove being arranged with the first protrusion end profile, institute are provided on first protrusion end face
The first through hole that vertical first protrusion end face is provided in the first protrusion is stated, the first protrusion side is provided with the first protrusion,
First protrusion end face is concordant with the first faying face；The first spiral shell of vertical first protrusion end face is provided on first protrusion
Keyhole, left sand core body exterior are provided with the first recessing groove corresponding with the first bolt hole；First extension end is arranged
There is the second bolt hole perpendicular to the first faying face, corresponding with the second bolt hole second is provided with outside first extension
Recessing groove；Second extension end is provided perpendicular to the third bolt hole of the first faying face, outside second extension
Portion is provided with third recessing groove corresponding with third bolt hole；
The right sand core includes right sand core main body, is arranged in the third extension of right sand core body top and setting in right sand
4th extension of core body top；The right sand core main body, third extension and the 4th extension correspond to the end face of left sand core
Concordantly, it and is formed on the second faying face；The upper right sand core main body of second faying face, third extension and the 4th extension difference
Setting, which empties position and is connected to form second, empties portion；The upper right sand core main body of second faying face, third extension and the 4th are stretched
Go out portion raised item is respectively set and connects to form the first raised item；The right sand core main body, third extension and the 4th extension
It is respectively provided with and is connected with each other the first raised item, be interconnected between the first raised item and form second and empty portion；The right sand core master
Several second row stomatas are provided with below body, the second row stomata is connected with second portion of emptying；In the right sand core main body
It is provided with the second protrusion, second protrusion end face is concordant with the second faying face；It is provided on second protrusion end face with
Second raised item of two protrusion end profiles setting, is provided with the second of vertical second protrusion end face in second protrusion and runs through
Hole, the second protrusion side are provided with the second protrusion, and second protrusion end face is concordant with the second faying face；Second protrusion
On be provided with the 4th bolt hole of vertical second protrusion side, right sand core body exterior is provided with corresponding with the 4th bolt hole
Four relief holes；Third extension end is provided perpendicular to the 5th bolt hole of the second faying face, the third extension
Outside is provided with the 5th recessing groove corresponding with the 5th bolt hole；The 4th extension end is provided perpendicular to the second combination
6th bolt hole in face is provided with the 6th recessing groove corresponding with the 6th bolt hole outside the 4th extension.
Based on above structure, be provided with first empty portion and second empty portion effect be reduce as far as possible molding sand and
The dosage of other raw materials can also mitigate the total weight of sand core；It is convex that first groove, the second groove, the first raised item and second are set
Play entry is to when left sand core and right sand core combine bad generation gap, prevent casting liquid from entering and empty position and be arranged
's；First row stomata and second row stomata effect are that the large-scale sand core venting quality of solution is bad, are reduced in casting because being vented bad make
At misrun, the defects of stomata；Setting bolt hole and recessing groove its effect are that allow left sand core and right sand core to combine closer；If
Being equipped with the first protrusion and the second protrusion, the purpose is to reinforce the intensity of sand core.
Further, the left sand core has identical outer profile with the right sand core；The left sand core, the first extension and
Second extension is Y-shaped, and the right sand core third extension, the 4th extension are Y-shaped.
Advantageous effect using above-mentioned further scheme is：Left sand core is combined with right sand core as far as possible, diesel engine sand
The outer meter accuracy higher of core.
Further, when the left sand core and the right sand core are combined closely, the first raised item insertion described first
In groove, second raised item is embedded in second groove.
Advantageous effect using above-mentioned further scheme is：When left sand core is combined not closely generation gap with right sand core, resistance
Gear metal liquid enters in sand core internal cavity.
Further, first protrusion side outer profile is identical with second protrusion side outer profile and is rectangular.
Advantageous effect using above-mentioned further scheme is：Make first to empty position and second and empties a midfoot support structure more
It is firm, add sand core strength.
Further, several first row stomatas and several second row stomatas correspond, and are combined into circular exhausting-gas hole.
Advantageous effect using above-mentioned further scheme is：Diesel engine body interior can be made ventilative good, reduced because of it
The defect that venting quality does not generate.
Due to the adoption of the above technical scheme, the invention has the advantages that：
1. the diesel engine main body sand core of the present invention reduces the dosage of molding sand and other raw materials, can also mitigate sand as far as possible
The total weight of core mitigates workload, saves casting cost.
The defects of 2. the diesel engine main body sand core of the present invention, venting quality is good, the misrun in reduction casting, stomata, casting
Better quality, precision higher.
3. the diesel engine main body sand core of the present invention, intensity is high, is tightly combined, is not susceptible to deform.
Description of the drawings
Fig. 1 is diesel engine main body sand core of the present invention；
Fig. 2 is the left sand core outer side view of the present invention；
Fig. 3 is the left sand core inner side view of the present invention；
Fig. 4 is the right sand core outer side view of the present invention；
Fig. 5 is the right sand core inner side view of the present invention；
In attached drawing, the left sand cores of 1-, the right sand cores of 2-, the left sand core main bodys of 11-, the first extensions of 12-, the second extensions of 13-,
It is recessed that the first faying faces of 14-, 15- first empty portion, the first grooves of 16-, 17- first rows stomata, the first protrusions of 111-, 112- second
Slot, the first through holes of 113-, the first protrusions of 114-, the first bolts hole of 115-, the first recessing grooves of 116-, the second bolts hole of 121-,
The second recessing grooves of 122-, 131- thirds bolt hole, 132- thirds recessing groove, the right sand core main bodys of 21-, 22- thirds extension, 23-
It is prominent that 4th extension, the second faying faces of 24-, 25- second empty portion, the first raised items of 26-, 27- second rows stomata, 211- second
Rise, the second raised items of 212-, the second through holes of 213-, the second protrusions of 214-, the 4th bolts hole of 215-, the 4th recessing grooves of 216-,
The 5th bolts hole of 221-, the 5th recessing grooves of 222-, the 6th bolts hole of 231-, the 6th recessing grooves of 232-.
Specific implementation mode
The specific implementation of invention is further illustrated below in conjunction with attached drawing.
It is as shown in Figure 1 a kind of diesel engine main body sand core of the present invention, including mutually close-fitting left sand core and right sand core,
Left sand core has identical outer profile, substantially Y-shaped with right sand core.
If Fig. 2 is left sand core outer side view, Fig. 3 show left sand core inner side view, left sand core 1 includes left sand core main body
11, be arranged left 11 top of sand core main body the first extension 12 and the second extension on left 11 top of sand core main body is set
13；The end face that left sand core main body 11, the first extension 12 and the second extension 13 correspond to right sand core 2 is concordant, and forms the first knot
Conjunction face 14；Groove is respectively set in left sand core main body 11, the first extension 12 and the second extension 13 on first faying face 14
And connect and to form the first groove 16, left sand core main body 11, the first extension 12 and the second extension on first faying face 14
13 are respectively set to empty position and be connected to form first and empty portion 15；11 lower section of the left sand core main body is provided with several first exhausts
Hole 17, first row stomata 17 empty portion 15 with first and are connected；The first protrusion 111 is provided in left sand core main body 11, first is prominent
It is concordant with the first faying face 14 to play 111 end faces；It is provided on first protrusion, 111 end face and is arranged with 111 end profile of the first protrusion
The second groove 112, the first through hole 113 of vertical first protrusion, 111 end face is provided in the first protrusion 111, institute first is prominent
It plays 111 sides and is provided with the first protrusion 114,114 end face of the first protrusion is concordant with the first faying face 14；It is set on first protrusion 114
It is equipped with the first bolt hole 115 of vertical first protrusion, 111 end face, is provided with outside left sand core main body 11 and the first bolt hole 115
Corresponding first recessing groove 116；First extension, 12 end is provided perpendicular to the second bolt hole 121 of the first faying face 14,
Second recessing groove corresponding with the second bolt hole 121 122 is provided with outside first extension 12；Second extension, 13 end is arranged
There is the third bolt hole 131 perpendicular to the first faying face 14, is provided with outside the second extension 13 corresponding with third bolt hole 131
Third recessing groove 132；
Right sand core outer side view, Fig. 5 show right sand core inner side view as shown in Figure 4, and right sand core 2 includes right sand core main body
21, be arranged right 21 top of sand core main body third extension 22 and the 4th extension on right 21 top of sand core main body is set
23；The end face that right sand core main body 21, third extension 22 and the 4th extension 23 correspond to left sand core 1 is concordant, and forms the second knot
On conjunction face 24；Second faying face, 24 upper right sand core main body 21, third extension 22 and the 4th extension 23 are respectively set and draw
Vacancy is simultaneously connected to form second and empties portion 25；Second faying face, 24 upper right sand core main body 21, third extension 22 and the 4th
Extension 23 is respectively set raised item and connects to form the first raised item 26；21 lower section of right sand core main body is provided with several second rows
Stomata 27, second row stomata 27 empty portion 25 with second and are connected；It is provided with the second protrusion 211 in right sand core main body 21, second
211 end face of protrusion is concordant with the second faying face 24；It is provided on second protrusion, 211 end face and is set with 211 end profile of the second protrusion
The second raised item 212 set, is provided with the second through hole 213 of vertical second protrusion, 211 end face in the second protrusion 211, institute the
Two protrusions, 211 side is provided with the second protrusion 214, and 214 end face of the second protrusion is concordant with the second faying face 24；Second protrusion 214
On be provided with the 4th bolt hole 215 of vertical second protrusion, 211 side, be provided with and the 4th bolt hole outside right sand core main body 21
215 corresponding 4th relief holes 216；22 end of third extension is provided perpendicular to the 5th bolt hole of the second faying face 24
221, the 5th recessing groove 222 corresponding with the 5th bolt hole 221 is provided with outside third extension 22；4th extension, 23 end
It is provided perpendicular to the 6th bolt hole 231 of the second faying face 24, it is right with the 6th bolt hole 231 to be provided with outside the 4th extension
The 6th recessing groove 232 answered.
Further, left sand core 1 has identical outer profile with right sand core 2；The left sand core 1, the first extension 12 and
Two extensions 13 are Y-shaped, and 2 third extension 22 of right sand core, the 4th extension 23 are Y-shaped.
Further, when left sand core 1 and right sand core 2 are combined closely, the first raised item 26 is embedded in the first groove 16, and second
Raised item 212 is embedded in the second groove 112.
Further, 111 side outer profile of the first protrusion and 211 side outer profile of the second protrusion are identical and to be rectangular.
Further, the first recessing groove 112, the second recessing groove 122, third recessing groove 132, the 4th recessing groove the 216, the 5th
Recessing groove 222 and the 6th recessing groove 232 are square.
Further, several first row stomatas 17 and several second row stomatas 27 correspond, and form circular exhausting-gas hole.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered patent of the present invention.
Claims (6)
1. a kind of diesel engine main body sand core：Including the left sand core (1) mutually combined closely and right sand core (2), it is characterised in that：
The left sand core (1) includes left sand core main body (11), the first extension (12) on left sand core main body (11) top is arranged
The second extension (13) with setting on left sand core main body (11) top；The left sand core main body (11), the first extension (12)
It is concordant with the end face of the corresponding right sand core (2) of the second extension (13), and form the first faying face (14)；First faying face
(14) left sand core main body (11), the first extension (12) and the second extension (13) are respectively set groove and connect formation first on
Groove (16), left sand core main body (11), the first extension (12) and the second extension (13) point on first faying face (14)
Position She Zhi not emptied and be connected to form first and empty portion (15)；It is provided with several first exhausts below the left sand core main body (11)
Hole (17), the first row stomata (17) empty portion (15) with first and are connected；Is provided on the left sand core main body (11)
One protrusion (111), the first protrusion (111) end face are concordant with the first faying face (14)；On first protrusion (111) end face
It is provided with the second groove (112) being arranged with the first protrusion (111) end profile, is provided on first protrusion (111) vertical
The first through hole (113) of straight first protrusion (111) end face, the first protrusion (111) side are provided with the first protrusion
(114), the first protrusion (114) end face is concordant with the first faying face (14)；It is provided on first protrusion (114) vertical
First bolt hole (115) of the first protrusion (111) end face, left sand core main body (11) is external to be provided with and the first bolt hole (115)
Corresponding first recessing groove (116)；First extension (12) end is provided perpendicular to the second of the first faying face (14)
Bolt hole (121), first extension (12) is external to be provided with the second recessing groove corresponding with the second bolt hole (121)
(122)；Second extension (13) end is provided perpendicular to the third bolt hole (131) of the first faying face (14), described
It is provided with third recessing groove (132) corresponding with third bolt hole (131) outside second extension (13)；
The right sand core (2) includes right sand core main body (21), the third extension (22) on right sand core main body (21) top is arranged
The 4th extension (23) with setting on right sand core main body (21) top；The right sand core main body (21), third extension (22)
It is concordant with the end face of the corresponding left sand core (1) of the 4th extension (23), and form the second faying face (24)；Second faying face
(24) upper right sand core main body (21), third extension (22) and the 4th extension (23), which are respectively set, empties position and is connected to form
Two empty portion (25)；The upper right sand core main body (21) of second faying face (24), third extension (22) and the 4th extension
(23) raised item is respectively set and connects to form the first raised item (26)；The right sand core main body (21), third extension (22)
It is respectively provided with the 4th extension (23) and is connected with each other the first raised item (26), be interconnected and formed between the first raised item (26)
Second empties portion (25)；It is provided with several second row stomatas (27), the second row stomata below the right sand core main body (21)
(27) portion (25) is emptied with second to be connected；The second protrusion (211) is provided on the right sand core main body (21), described second is prominent
It is concordant with the second faying face (24) to play (211) end face；It is provided with the second protrusion (211) on second protrusion (211) end face
The second raised item (212) of end profile setting, is provided with vertical second protrusion (211) end face on second protrusion (211)
The second through hole (213), the second protrusion (211) side is provided with the second protrusion (214), second protrusion (214)
End face is concordant with the second faying face (24)；The 4th of vertical second protrusion (211) side the is provided on second protrusion (214)
Bolt hole (215), right sand core main body (21) is external to be provided with the 4th recessing groove (216) corresponding with the 4th bolt hole (215)；Institute
The 5th bolt hole (221) that third extension (22) end is provided perpendicular to the second faying face (24) is stated, the third is stretched out
It is provided with the 5th recessing groove (222) corresponding with the 5th bolt hole (221) outside portion (22)；4th extension (23) end
It is provided perpendicular to the 6th bolt hole (231) of the second faying face (24), is provided with and the 6th spiral shell outside the 4th extension
Corresponding 6th recessing groove (232) of keyhole (231).
2. a kind of diesel engine main body sand core according to claim 1, it is characterised in that：The left sand core (1) and the right sand
Core (2) has identical outer profile；The left sand core (1), the first extension (12) and the second extension (13) are Y-shaped, described
Right sand core (2) third extension (22), the 4th extension (23) are Y-shaped.
3. a kind of diesel engine main body sand core according to claim 1, it is characterised in that：The left sand core (1) and the right sand
When core (2) is combined closely, in embedded first groove (16) of first raised item (26), second raised item (212)
In embedded second groove (112).
4. a kind of diesel engine main body sand core according to claim 1, it is characterised in that：Outside first protrusion (111) side
Profile is identical with the second protrusion (211) side outer profile and is rectangular.
5. a kind of diesel engine main body sand core according to claim 1, it is characterised in that：First recessing groove (116),
Two recessing grooves (122), third recessing groove (132), the 4th recessing groove (216), the 5th recessing groove (222) and the 6th recessing groove
(232) it is square.
6. a kind of diesel engine main body sand core according to claim 1, it is characterised in that：Several first row stomatas (17) and
Several second row stomatas (27) correspond, and form circular exhausting-gas hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710044802.6A CN106670394B (en) | 2017-01-20 | 2017-01-20 | A kind of diesel engine main body sand core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710044802.6A CN106670394B (en) | 2017-01-20 | 2017-01-20 | A kind of diesel engine main body sand core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106670394A CN106670394A (en) | 2017-05-17 |
| CN106670394B true CN106670394B (en) | 2018-08-10 |
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ID=58859852
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710044802.6A Expired - Fee Related CN106670394B (en) | 2017-01-20 | 2017-01-20 | A kind of diesel engine main body sand core |
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| CN (1) | CN106670394B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047721B (en) * | 2018-10-18 | 2020-06-05 | 四川省犍为恒益铝业有限公司 | Low-pressure casting die for vehicle box body |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02211933A (en) * | 1989-02-10 | 1990-08-23 | Isuzu Motors Ltd | Method for positioning core in mold |
| US7143807B2 (en) * | 2004-06-04 | 2006-12-05 | General Motors Corporation | Mold design for improved bore liner dimensional accuracy |
| CN103495705B (en) * | 2013-10-16 | 2015-11-11 | 四川省祥业机械铸造有限公司 | A kind of Engine cylinder body sand core mould structure and formative technology thereof |
| CN203664593U (en) * | 2014-01-29 | 2014-06-25 | 广西玉柴机器股份有限公司 | High-temperature cooler sand core die for large diesel engine |
| CN204276821U (en) * | 2014-12-16 | 2015-04-22 | 苏州市通润机械铸造有限公司 | Air compressor cylinder sand core structure |
| CN106040988B (en) * | 2016-08-03 | 2017-11-17 | 日月重工股份有限公司 | The production method of marine diesel body core |
| CN206492906U (en) * | 2017-01-20 | 2017-09-15 | 百色学院 | A kind of diesel engine main body sand core |
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2017
- 2017-01-20 CN CN201710044802.6A patent/CN106670394B/en not_active Expired - Fee Related
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| CN106670394A (en) | 2017-05-17 |
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Granted publication date: 20180810 Termination date: 20210120 |