CN219665049U - Volute type centrifugal pump runner sand core - Google Patents
Volute type centrifugal pump runner sand core Download PDFInfo
- Publication number
- CN219665049U CN219665049U CN202321112187.5U CN202321112187U CN219665049U CN 219665049 U CN219665049 U CN 219665049U CN 202321112187 U CN202321112187 U CN 202321112187U CN 219665049 U CN219665049 U CN 219665049U
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- core box
- half core
- die
- box die
- upper half
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- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract description 3
- 238000005498 polishing Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a volute type centrifugal pump runner sand core, which relates to the technical field of centrifugal pumps and comprises a lower die mechanism, wherein an upper die mechanism is movably embedded at the top of the lower die mechanism, the upper die mechanism comprises a first half core box die, a second half core box die, a third half core box die, a fourth half core box die, a fifth half core box die and a sixth half core box die, and clamping blocks are fixedly arranged on one sides of the outer walls of the first half core box die, the second half core box die, the third half core box die, the fourth half core box die, the fifth half core box die and the sixth half core box die. According to the utility model, by using the mold separation scheme, a volute type centrifugal pump product with higher dimensional accuracy and smoother runner surface quality can be obtained, the production period of a front core assembly and the production period of a rear polishing are greatly reduced, an integral sand core can be manufactured, the sand core has high structural strength, cracks are not easy to generate, and the condition that a drape gap is formed in a casting is avoided.
Description
Technical Field
The utility model relates to the technical field of centrifugal pumps, in particular to a volute type centrifugal pump runner sand core.
Background
The centrifugal pump is operated by utilizing the rotation of the impeller to make water generate centrifugal motion, before the water pump is started, the pump shell and the water suction pipe are required to be filled with water, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation motion, the water generates centrifugal motion and is thrown to the outer edge of the impeller, and the water flows into a water pressing pipeline of the water pump through a runner of the volute pump shell.
At present, when a volute type centrifugal pump is produced by sand casting, a volute runner sand core is usually manufactured by two halves separately, the sand core is hardened after manufacturing, the two halves of the sand core are bonded by using an adhesive after taking a die, the sand core manufactured by the two halves is broken and scrapped due to small cross section area and poor strength of the sand core, the sand core is broken, molten steel is cast and then is drilled into cracks to form fleshy or rat tail defects, after the two halves of the sand core are bonded, a drape is formed inside a casting, the polishing difficulty is high, and great workload is brought to finishing.
Disclosure of Invention
The utility model aims to provide a volute type centrifugal pump runner sand core so as to solve the problems in the background.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the volute type centrifugal pump runner sand core comprises a lower die mechanism, wherein an upper die mechanism is movably embedded at the top of the lower die mechanism;
the upper die mechanism comprises a first upper half core box die, a second upper half core box die, a third upper half core box die, a fourth upper half core box die, a fifth upper half core box die and a sixth upper half core box die, wherein clamping blocks are fixedly arranged on one sides of the outer walls of the first upper half core box die, the third upper half core box die, the fourth upper half core box die and the sixth upper half core box die, and clamping grooves are formed in one sides of the outer walls of the first upper half core box die, the third upper half core box die, the fourth upper half core box die, the fifth upper half core box die and the sixth upper half core box die, and the outer surfaces of the clamping blocks are mutually embedded with the inner surface walls of the clamping grooves.
Preferably, the first half core box die, the second half core box die, the third half core box die, the fourth half core box die, the fifth half core box die and the sixth half core box die are provided with the second forming groove at the bottom.
Preferably, the first half core box die, the second half core box die, the third half core box die, the fourth half core box die and the bottom of the sixth half core box die are provided with the bottom of the second forming groove, and the bottom of the sixth half core box die is fixedly provided with a limiting block.
Preferably, the lower die mechanism comprises a lower half core box die, and a first forming groove is formed in the top of the lower half core box die.
Preferably, a group of limit grooves are formed in the top of the lower half core box die.
Preferably, the outer surface walls of the limiting blocks are movably embedded in the limiting grooves, and the top of the lower half core box die is in contact with the bottoms of the first half core box die, the second half core box die, the third half core box die, the fourth half core box die, the fifth half core box die and the sixth half core box die.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. according to the utility model, by using the die-dividing scheme, a volute type centrifugal pump product with higher dimensional accuracy and smoother runner surface quality can be obtained, and the production period of the former core assembly and the production period of the latter polishing are greatly reduced.
2. According to the utility model, after the scheme is used, the integral sand core can be manufactured, the sand core has high structural strength, cracks are not easy to generate, and the situation that a mantling seam is formed in the casting is avoided.
Drawings
Fig. 1 is a perspective view of a front view structure of a flow channel sand core of a volute type centrifugal pump according to the present utility model;
FIG. 2 is a perspective view of a lower die mechanism in a flow channel sand core of a volute type centrifugal pump according to the utility model;
FIG. 3 is a diagram showing the disassembly of the upper die mechanism in the flow channel sand core of the volute type centrifugal pump according to the utility model;
fig. 4 is a plan view of an upper die mechanism in a runner sand core of a volute type centrifugal pump according to the utility model.
Legend description:
1. a lower die mechanism; 101. a lower half core box mold; 102. a first forming groove; 103. a limit groove;
2. an upper die mechanism; 201. an upper half core box mold I; 202. an upper half core box mold II; 203. an upper half core box mould III; 204. a fourth half core box mould; 205. a fifth half core box mould; 206. a sixth upper half core box mould; 207. a clamping block; 208. a clamping groove; 209. a second forming groove; 210. and a limiting block.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
The embodiment 1, as shown in fig. 1-4, provides a volute type centrifugal pump runner sand core, which comprises a lower die mechanism 1, wherein an upper die mechanism 2 is movably embedded at the top of the lower die mechanism 1;
the upper die mechanism 2 comprises a first upper half core box die 201, a second upper half core box die 202, a third upper half core box die 203, a fourth upper half core box die 204, a fifth upper half core box die 205 and a sixth upper half core box die 206, wherein the first upper half core box die 201, the second upper half core box die 202, the third upper half core box die 203, the fourth upper half core box die 204, the fifth upper half core box die 205 and the sixth upper half core box die 206 are fixedly provided with clamping blocks 207 on one side of the outer wall, the first upper half core box die 201, the second upper half core box die 202, the third upper half core box die 203, the fourth upper half core box die 204, the fifth upper half core box die 205 and the sixth upper half core box die 206 are provided with clamping grooves 208 on one side of the outer wall, the outer surface walls of the clamping blocks 207 and the inner surfaces of the clamping grooves 208 are mutually embedded, the first upper half core box die 201, the second upper half core box die 202, the third upper half core box die 203, the fourth upper half core box die 204, the fifth upper half core box die 205 and the sixth upper half core box die 206 are provided with limiting blocks on one side, the bottom of the second upper half core box die 206 is provided with a groove 210, and the bottom of the fourth upper half core box die 206 is provided with a groove 210, and the fourth upper half core box die 206 is provided with a forming groove 210 is provided.
The effect achieved in the whole embodiment 1 is that, first, the upper mold mechanism 2 is formed by combining a plurality of molds, a clamping groove 208 is formed between the outer surface walls of each mold, and a clamping block 207 is installed, and by embedding and clamping the clamping blocks 207 and the clamping grooves 208 between the plurality of molds, the upper mold mechanism 2 can be formed integrally, and a plurality of forming grooves two 209 are formed at the bottom of the upper mold mechanism, and after the upper mold mechanism is formed integrally, a finished upper mold cavity can be formed.
In embodiment 2, as shown in fig. 2-4, the lower mold mechanism 1 includes a lower half core box mold 101, a first molding groove 102 is formed at the top of the lower half core box mold 101, a set of limiting grooves 103 are formed at the top of the lower half core box mold 101, the outer surface walls of the limiting blocks 210 are movably embedded in the limiting grooves 103, and the top of the lower half core box mold 101 is in contact with the bottoms of the first upper half core box mold 201, the second upper half core box mold 202, the third upper half core box mold 203, the fourth upper half core box mold 204, the fifth upper half core box mold 205 and the sixth upper half core box mold 206.
The effect achieved in the whole embodiment 2 is that, first, a set of limit grooves 103 are formed in the top of the lower die mechanism 1, and the limit grooves are engaged with the limit blocks 210 at the bottoms of the plurality of upper dies, so that the connection processing between the lower die mechanism 1 and the upper die mechanism 2 can be realized.
Working principle: the upper die mechanism 2 is formed by combining a plurality of dies, a clamping groove 208 is formed between the outer surface walls of each die, a clamping block 207 is arranged, the upper die mechanism 2 which is formed into a whole can be realized by embedding and clamping the clamping blocks 207 and the clamping grooves 208 between the dies, a plurality of forming grooves II 209 are formed at the bottom of the upper die mechanism, after the upper die mechanism 2 is formed into a whole, a finished upper die cavity can be formed, then the upper die mechanism 2 is moved downwards, and the outer surface walls of the upper die mechanism and a group of limiting blocks 210 can be respectively and movably inserted into the inner parts of the limiting grooves 103, so that the connection treatment of the upper die mechanism 1 and the lower die mechanism 1 is realized, after the connection, the forming grooves I102 and the forming grooves II 209 can form a finished forming groove, after the connection treatment is carried out, after the internal cooling forming of the upper die mechanism is finished, a finished upper die cavity can be formed by drawing out the upper die box, the upper die mechanism 2 and the upper die mechanism and the outer surface of the lower die mechanism are provided with a group of a higher size, the volute casing has a higher dimensional quality, the cycle time and the cycle time of the centrifugal pump is greatly reduced, and the cycle time is shortened.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (6)
1. The utility model provides a spiral case formula centrifugal pump runner psammitolite which characterized in that: the die comprises a lower die mechanism (1), wherein an upper die mechanism (2) is movably embedded at the top of the lower die mechanism (1);
the upper die mechanism (2) comprises an upper half core box die I (201), an upper half core box die II (202), an upper half core box die III (203), an upper half core box die IV (204), an upper half core box die V (205) and an upper half core box die V (206), wherein the outer wall sides of the upper half core box die I (201), the upper half core box die II (202), the upper half core box die III (203), the upper half core box die IV (204), the upper half core box die V (205) and the upper half core box die V (206) are fixedly provided with clamping blocks (207), and the outer surfaces of the clamping blocks (207) and the inner surface walls of the clamping grooves (208) are embedded with each other.
2. A volute centrifugal pump flow channel sand core according to claim 1, characterized in that: the first half core box die (201), the second half core box die (202), the third half core box die (203), the fourth half core box die (204), the fifth half core box die (205) and the sixth half core box die (206) are provided with the second forming groove (209) at the bottom.
3. A volute centrifugal pump flow channel sand core according to claim 2, characterized in that: the first half core box die (201), the second half core box die (202), the third half core box die (203), the fourth half core box die (204) and the sixth half core box die (206) are provided with limiting blocks (210) at the bottoms of the second forming grooves (209).
4. A volute centrifugal pump flow channel sand core according to claim 3, characterized in that: the lower die mechanism (1) comprises a lower half core box die (101), and a first forming groove (102) is formed in the top of the lower half core box die (101).
5. A volute centrifugal pump flow channel sand core according to claim 4, characterized in that: a group of limit grooves (103) are formed in the top of the lower half core box die (101).
6. A volute centrifugal pump flow channel sand core according to claim 5, characterized in that: the outer surface walls of the limiting blocks (210) are movably embedded in the limiting grooves (103), and the tops of the lower half core box dies (101) are in contact with the bottoms of the first upper half core box die (201), the second upper half core box die (202), the third upper half core box die (203), the fourth upper half core box die (204), the fifth upper half core box die (205) and the sixth upper half core box die (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112187.5U CN219665049U (en) | 2023-05-10 | 2023-05-10 | Volute type centrifugal pump runner sand core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112187.5U CN219665049U (en) | 2023-05-10 | 2023-05-10 | Volute type centrifugal pump runner sand core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219665049U true CN219665049U (en) | 2023-09-12 |
Family
ID=87920682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321112187.5U Active CN219665049U (en) | 2023-05-10 | 2023-05-10 | Volute type centrifugal pump runner sand core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219665049U (en) |
-
2023
- 2023-05-10 CN CN202321112187.5U patent/CN219665049U/en active Active
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