CN204770492U - Piston casting mould supports - Google Patents
Piston casting mould supports Download PDFInfo
- Publication number
- CN204770492U CN204770492U CN201520393006.XU CN201520393006U CN204770492U CN 204770492 U CN204770492 U CN 204770492U CN 201520393006 U CN201520393006 U CN 201520393006U CN 204770492 U CN204770492 U CN 204770492U
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- China
- Prior art keywords
- rod
- support
- support set
- block
- piston
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- Withdrawn - After Issue
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Abstract
The utility model discloses a piston casting mould supports, including the body of rod, body of rod bearing structure with support the fixed plate, in the body of rod was fixed in body of rod bearing structure, body of rod bearing structure was nested in supporting the fixed plate, body of rod bearing structure is inside be provided with with the communicating gas passage of atmosphere. Compared with the prior art, the utility model provides a piston casting mould supports among the prior art can't get rid of the gas that the salt core gived off to cause the problem of foundry goods bubble defect.
Description
Technical field
The utility model relates to mould parts technical field, more particularly, relates to the support component that a kind of piston waters mold.
Background technology
Piston is most important parts in engine, engine output improve constantly the raising directly bringing engine piston thermic load and mechanical load, the heat dissipation problem of piston crown becomes the key of restriction piston reliability.Arrange interior oil cooling passage at piston crown to carry out forcing cooling to be conventional method to it.
Admissible salt core method is the main method of cooling oil duct piston in casting, this technology utilizes solubility salt after extruding, turning, sintering and Drilling operation, formation has given shape and sufficient intensity, ganoid salt core, and salt core has the fusing point higher than aluminium alloy.In band, the all-aluminium piston of oil cooling passage is when casting blank, needs first to be arranged on mould support by the salt core of oil cooling passage in formation, and then aluminium liquid pours in mold cavity, parcel salt core.After aluminium liquid solidifies, rinsed the salt core be wrapped in spray by giant, thus form the interior oil cooling passage of piston.
Salt core body has the feature of moisture absorption porous, easily absorb and store steam in use, absorb the salt core of steam in follow-up casting cycle, understand emergent gas from salt core and rest on around salt core, if the gas that salt core distributes effectively can not be got rid of, then gas content will is around the oil duct of piston blank, thus produces air blister defect, causes piston to be scrapped.
Inventor finds when realizing the utility model, and existing piston waters mold when supporting fixing salt core apparatus, produces oil duct bubble, cause the quality of piston blank oil duct undesirable in piston blank.The existing piston of accompanying drawing 1 waters mold sectional view.Accompanying drawing 2 is the sectional views of " internally-cooled oil channel piston salt core positioner " disclosed by ZL201020601149.2.Can find out from accompanying drawing 1 and accompanying drawing 2, it is all adopt salt core backstay fixing in support set support salt core and fix that existing piston waters mold support, and the piston blank that this piston waters mold support exists oil duct bubble, causes Piston Casting to be scrapped.
Utility model content
The utility model provides a kind of novel piston to water mold and supports, for solving the problem that Piston Casting is scrapped because interior oil cooling passage there is air blister defect.
The technical solution of the utility model is as follows:
A kind of piston waters mold and supports, comprise the body of rod, body of rod supporting construction and support fixed head, the described body of rod is fixed in body of rod supporting construction, and body of rod supporting construction is nested in and supports in fixed head, and the gas passage communicated with air is left in described body of rod supporting construction inside.
Further, body of rod supporting construction comprises body of rod fixed cover, support set and back-up block, the body of rod is fixed on described body of rod fixed cover upper end, the body of rod inserts in support set with body of rod fixed cover, gap is there is between the body of rod and support set, described support set and back-up block are jointly nested in and support in fixed head, and back-up block is positioned at below support set, through hole is had in back-up block, air channel is had at support set inwall or body of rod fixed cover outer wall, also on support set inwall and body of rod fixed cover outer wall, all air drain can be opened, one end of air channel and the gap between the body of rod with support set are connected, the other end is connected with the through hole in back-up block and is connected with air, gap between the body of rod and support set, through hole in air channel and back-up block together constitutes the gas passage of described supporting construction inside.
Further, when the utility model size changes, when causing described through hole can not directly be connected with air channel, continue to open air drain in the upper surface of back-up block.Also a counterbore be connected with air channel can be opened in back-up block upper surface.
Further, the quantity of described air channel is no less than one, preferably 4.
Further, the described body of rod and body of rod fixed cover can be made into an entirety, also can be demountable structures, and the preferred body of rod to insert in body of rod fixed cover and is screwed.
Further, described support set is step cover.
Further, the described body of rod is steel nail or the steel wire that radius is less than support set internal diameter.
Further, for convenience of being connected with air extractor or blowing plant, the through hole lower end of opening in back-up block is provided with air pipe interface.
Further, described support fixed head is the steel bushing of band mounting ear.
Compared with prior art, the piston that the utility model provides waters mold and supports by being arranged on the gas passage communicated with air supporting inside, ensure when watering mold in direct casting, supporting inside is vented usually all the time, the gas that in casting, salt core distributes can fully be discharged, effectively prevent the air blister defect of oil cooling passage in Piston Casting, thus improve the yield rate of Piston Casting.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only used to understand the utility model better, and should not be construed restriction of the present utility model.For those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the sectional view that a kind of existing piston waters mold support
Fig. 2 is the sectional view that another kind of existing piston waters mold support
Fig. 3 is the structural representation of a kind of embodiment of the utility model
Fig. 4 is the front view of a kind of embodiment of the utility model
Fig. 5 is the top view of a kind of embodiment of the utility model
Fig. 6 is the A-A sectional view of Fig. 5
Fig. 7 is the B-B sectional view of Fig. 6
Fig. 8 is the C-C sectional view of Fig. 6
In Fig. 3 to Fig. 8:
1 body of rod; 2 body of rod supporting constructions; 3 support fixed head
21 support sets; 22 body of rod fixed covers; 221 air channels; 222 screws; 23 back-up blocks; 231 through holes; 232 air pipe interfaces; 233 air channels.
Detailed description of the invention
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.
Piston described in the utility model waters mold support package and draws together the body of rod 1, body of rod supporting construction 2 and support fixed head 3, the described body of rod 1 is fixed in body of rod supporting construction 2, body of rod supporting construction 2 is nested in and supports in fixed head 3, and the gas passage communicated with air is left in described body of rod supporting construction 2 inside.During use, the body of rod inserts salt core blind hole, and salt core is placed on the body of rod, and the salt core escaping gas that is heated can be taken away by air exhauster by the gas passage of supporting construction 2 inside.
Fig. 3 illustrates a kind of structural representation preferred embodiment of the utility model, and Fig. 4 is the front view of this embodiment, and Fig. 5 is the top view of this embodiment.The utility model comprises the body of rod 1, body of rod supporting construction 2 and supports fixed head 3, and support in fixed head 3 and be nested with body of rod supporting construction 2, body of rod supporting construction 2 is for fixed core 1.Body of rod supporting construction 2 comprises support set 21, body of rod fixed cover 22 and back-up block 23.It is inner that the body of rod 1 is fixed on body of rod fixed cover 22.
As shown in Fig. 3, Fig. 6 and Fig. 7, the body of rod 1 inserts in support set 21 with body of rod fixed cover 22, airspace is left between the body of rod and support set, the air channel 221 in described gap between connecting-rod body and support set is had between support set 21 and body of rod fixed cover 22, air channel 221 both can have been opened at support set 21 inwall, also can open at body of rod support set 22 outer wall.When support set 21 internal diameter is less, during air channel processing difficulties, preferably open air drain at body of rod fixed cover 22 outer wall, the quantity of air channel 221 is no less than one, preferably 4.
As shown in Figure 6 and Figure 8, back-up block 23 is inserted in body of rod fixed cover 22 lower end, and back-up block 23 inside has through hole 231, and through hole 231 upper end and air channel 221 are interconnected.
When the utility model size changes, through hole 231 radius in back-up block 23 is too little, when thus directly can not be connected with air channel 221, can continue to open air drain 233 in the upper surface of back-up block, also a counterbore can be opened in back-up block upper surface, make the gas in air channel be introduced into air channel 233 or counterbore, and then enter back-up block through hole 231.
Known by description above, the gap between the body of rod 1 and support set 21, the air channel 221 between support set 21 and body of rod fixed cover 22, through hole 231 three in back-up block are interconnected, and jointly constitute and water the gas passage that mold supports inside.The motion path of gas is: gas enters from support set 21 top and is arranged on support set 21 with the gap of body of rod fixed cover 22, flows through the air channel 221 between support set 21 and body of rod fixed cover 22, finally extracts out from the through hole 231 of back-up block.
Conveniently taken away by gas, the through hole lower end of back-up block is provided with air pipe interface 232.Air pipe interface 232 is connected with air extractor by tracheae, is bled in casting cycle by air extractor.
The body of rod 1 and body of rod fixed cover 22 can be designed to an entirety, but consider that the body of rod 1 can wear and tear in use, running stores, middle need are used often to change, the conveniently replacing of the body of rod and installation, be preferably demountable structure between the body of rod 1 and body of rod fixed cover 22, the body of rod is tightened in support set 21 by screw 222 after inserting body of rod fixed cover.
Preferably, for ease of processing and fabricating, the body of rod 1 can use common exotic material to make, such as steel nail or steel wire, and the radius of steel nail or steel wire is less than support set 21, the convenient gap formed for air circulation between the body of rod 1 and support set 21.
The above is only the detailed description of the invention of the application, it should be pointed out that for those skilled in the art, and that makes under the prerequisite not departing from the application's principle the improvement of creative work need not all be considered as the protection domain that the application protects.
Claims (10)
1. a piston waters mold support, it is characterized in that: comprise the body of rod (1), body of rod supporting construction (2) and support fixed head (3), the described body of rod (1) is fixed in body of rod supporting construction (2), body of rod supporting construction (2) is nested in and supports in fixed head (3), and the gas passage communicated with air is left in described body of rod supporting construction (2) inside.
2. piston according to claim 1 waters mold support, it is characterized in that: described body of rod supporting construction (2) comprises support set (21), body of rod fixed cover (22) and back-up block (23), the body of rod (1) is fixed on described body of rod fixed cover (22) upper end, the body of rod (1) inserts in support set (21) with body of rod fixed cover (22), gap is there is between the body of rod (1) and support set (21), described support set (21) and back-up block (23) are jointly nested in and support in fixed head (3), and back-up block (23) is positioned at support set (21) below, through hole (231) is had in described back-up block (23), described support set (21) inwall and/or body of rod fixed cover (22) outer wall have the air channel (221) being no less than, one end of described air channel (221) is communicated with the gap between the body of rod (1) and support set (21), the other end is communicated with the through hole (231) in described back-up block (23), described gas passage is made up of jointly the through hole (231) in the gap between the described body of rod (1) and support set (21) and air channel (221) and back-up block.
3. piston according to claim 2 waters mold and supports, and it is characterized in that: the air channel (233) being no less than by the upper surface of back-up block (23) between described through hole (231) with air channel (221) is communicated with.
4. piston according to claim 2 waters mold support, it is characterized in that: be communicated with at the counterbore of the upper surface of back-up block (23) by opening between described through hole (231) with air channel (221).
5. piston according to claim 2 water mold support, it is characterized in that: the described body of rod (1) and body of rod fixed cover (22) as a whole.
6. piston according to claim 2 waters mold support, it is characterized in that: the described body of rod (1) and the fixed form of body of rod fixed cover (22) are that screw (222) is fixed.
7. piston according to claim 2 waters mold support, it is characterized in that: described support set (21) is step cover.
8. piston according to claim 2 waters mold support, it is characterized in that: the described body of rod (1) is steel nail or steel wire, described steel nail or gauge of wire are less than support set (21) internal diameter, form the described gap between the body of rod (1) and support set (21).
9. the piston according to claim 2 ~ 8 any one waters mold and supports, and it is characterized in that: described through hole (231) lower end is provided with air pipe interface (232).
10. the piston according to claim 1 ~ 8 any one waters mold and supports, and it is characterized in that: described support fixed head (3) is the steel bushing of band mounting ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393006.XU CN204770492U (en) | 2015-06-09 | 2015-06-09 | Piston casting mould supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393006.XU CN204770492U (en) | 2015-06-09 | 2015-06-09 | Piston casting mould supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204770492U true CN204770492U (en) | 2015-11-18 |
Family
ID=54510618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520393006.XU Withdrawn - After Issue CN204770492U (en) | 2015-06-09 | 2015-06-09 | Piston casting mould supports |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204770492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889343A (en) * | 2015-06-09 | 2015-09-09 | 湖南江滨机器（集团）有限责任公司 | Piston casting mould support and piston casting method |
-
2015
- 2015-06-09 CN CN201520393006.XU patent/CN204770492U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889343A (en) * | 2015-06-09 | 2015-09-09 | 湖南江滨机器（集团）有限责任公司 | Piston casting mould support and piston casting method |
| CN104889343B (en) * | 2015-06-09 | 2017-03-08 | 湖南江滨机器（集团）有限责任公司 | A kind of piston pours mold and supports and piston casting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20171114 |