CN201552285U - Vacuum pump shell mould - Google Patents
Vacuum pump shell mould Download PDFInfo
- Publication number
- CN201552285U CN201552285U CN2009202358311U CN200920235831U CN201552285U CN 201552285 U CN201552285 U CN 201552285U CN 2009202358311 U CN2009202358311 U CN 2009202358311U CN 200920235831 U CN200920235831 U CN 200920235831U CN 201552285 U CN201552285 U CN 201552285U
- Authority
- CN
- China
- Prior art keywords
- shell mould
- vacuum pump
- mould
- pump shell
- vavuum pump
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a vacuum pump shell mould which comprises an upper shell mould and a lower shell mould, wherein a casting space is formed between the upper shell mould and the lower shell mould, and the middle part of the lower shell mould is provided with a convex block extending towards the casting space. When a vacuum pump shell is produced, the vacuum pump shell mould leads a concave hole to be directly formed in the middle part of the bottom surface of an inner cavity of the vacuum pump shell, the concave hole is used for the subsequent machining technique, and another hole is not needed to be additionally drilled. The vacuum pump shell mould simplifies the production technique of the vacuum pump shell, reduces the production cost and simultaneously improves the production efficiency.
Description
Technical field
The utility model relates to a kind of mould, particularly a kind of vavuum pump shell mould mould.
Background technology
Automobile has main parts size such as pump case, rotor, blade, cover plate, air extraction connector parts, back leakage connection to constitute with vavuum pump.Pump case, rotor, blade, cover plate constitute several confined spaces, when rotor turns clockwise, when the volume of confined space changes from small to big, bleed through the air extraction connector parts; The volume of confined space is from large to small the time, through the back leakage connection exhaust.In the prior art, be exclusively used in make above-mentioned vavuum pump pump case the shell mould mould as shown in Figure 1, comprise cope shell (a) and drag sheel (b), cope shell (a) and drag sheel (b) and form casting space (c) together, use vavuum pump pump case (d) that such mould produces as shown in Figure 2, the inner chamber bottom surface (e) of vavuum pump pump case (d) is the plane.But such vavuum pump pump case just is in the blank state, needing that in subsequent technique cutter is stretched into vavuum pump pump case inside cavity reprocesses it, and quality and precision in order to guarantee to reprocess, need use drilling machine process for machining hole of reprocessing in addition in the bottom surface of pump case inner chamber, when the cutter front end entered the process for machining hole, cutter stopped feed.The process in a process for machining hole of above-mentioned use drilling machine reprocessing causes complex manufacturing, and the production cost of vavuum pump pump case increases and production efficiency reduces.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of vavuum pump shell mould mould that can directly form the process for machining hole at vavuum pump pump case inner chamber is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of vavuum pump shell mould mould, comprise cope shell and drag sheel, and form casting space between cope shell and the drag sheel, described drag sheel middle part is provided with the projection that stretches out in casting space.
The utility model is provided with the projection that stretches out at the drag sheel middle part of vavuum pump shell mould mould in casting space, therefore, the middle part, vavuum pump pump case inner chamber bottom surface of using the utility model to produce directly has shrinkage pool, and do not need to use in addition again lathe to hole, process for machining hole when this shrinkage pool is reprocessing, the cutter front end stops feed when entering shrinkage pool.The utility model has not only been simplified the production technology of the vavuum pump pump housing and has been reduced production cost, has also improved the quality and the production efficiency of product.
Description of drawings
Fig. 1 is the cutaway view of prior art intermediate pump shell mould mould.
The vavuum pump pump shell structure schematic diagram that Fig. 2 is produced for use vavuum pump shell mould mould shown in Figure 1.
Fig. 3 is the cutaway view of the utility model vavuum pump shell mould mould.
The vavuum pump pump shell structure schematic diagram of Fig. 4 for using the utility model vavuum pump shell mould mould to be produced.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further.
Referring to Fig. 2, the utility model vavuum pump shell mould mould comprises cope shell 1 and drag sheel 2, forms casting space 3 between cope shell 1 and the drag sheel 2, and described drag sheel 2 middle parts are provided with a projection that stretches out 4 in casting space 3.During use, cope shell 1 and drag sheel 2 are lumped together, casting space between cope shell 1 and drag sheel 23 injects metal liquid then, after the die sinking to be cooled, promptly produce vavuum pump pump case 5, as shown in Figure 4, there is a shrinkage pool 7 at middle part, the bottom surface of the inner chamber 6 of the vavuum pump pump case of producing 5, and shrinkage pool 7 is the process for machining hole.Use the vavuum pump pump case of the utility model production directly to have the process for machining hole, need not to hole in addition again, therefore, the utility model has been simplified processing technology, has saved production cost, has also improved production efficiency.
Claims (1)
1. a vavuum pump shell mould mould comprises cope shell (1) and drag sheel (2), forms casting space (3) between cope shell (1) and the drag sheel (2), it is characterized in that: described drag sheel (2) middle part is provided with the projection (4) that stretches out in casting space (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202358311U CN201552285U (en) | 2009-10-12 | 2009-10-12 | Vacuum pump shell mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202358311U CN201552285U (en) | 2009-10-12 | 2009-10-12 | Vacuum pump shell mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201552285U true CN201552285U (en) | 2010-08-18 |
Family
ID=42611959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202358311U Expired - Fee Related CN201552285U (en) | 2009-10-12 | 2009-10-12 | Vacuum pump shell mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201552285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964916A (en) * | 2016-06-20 | 2016-09-28 | 福建立松金属工业有限公司 | Submersible pump body casting technology |
-
2009
- 2009-10-12 CN CN2009202358311U patent/CN201552285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964916A (en) * | 2016-06-20 | 2016-09-28 | 福建立松金属工业有限公司 | Submersible pump body casting technology |
| CN105964916B (en) * | 2016-06-20 | 2017-11-24 | 福建立松金属工业有限公司 | Immersible pump pump housing casting technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20131012 |