CN219774444U - Injection molding shell of space guide vane body - Google Patents
Injection molding shell of space guide vane body Download PDFInfo
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- CN219774444U CN219774444U CN202320306582.0U CN202320306582U CN219774444U CN 219774444 U CN219774444 U CN 219774444U CN 202320306582 U CN202320306582 U CN 202320306582U CN 219774444 U CN219774444 U CN 219774444U
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- shell
- guide vane
- space
- flange
- cylindrical surface
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004677 Nylon Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims 3
- 239000007924 injection Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 239000003292 glue Substances 0.000 abstract 1
- 238000005381 potential energy Methods 0.000 description 27
- 239000007788 liquid Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000000670 limiting effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000005058 metal casting Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides an injection molding shell of a space guide vane body, wherein the inner side wall of the shell comprises: the first cylindrical surface, the cambered surface and the second cylindrical surface; the first cylindrical surface and the second cylindrical surface are respectively arranged at two ends of the inner wall of the shell, and two sides of the cambered surface are respectively connected with the first cylindrical surface and the second cylindrical surface; the inner side wall of the shell is provided with a mounting groove; the end part of the shell is provided with a flange structure for connecting other water pump parts, the flange structure comprises a first flange and a second flange, and the first flange and the second flange are respectively arranged at two end parts of the shell. The utility model provides an injection molding guide core of a space guide vane body, which comprises the following components: a core and a plurality of guide vanes arranged on the core; the flow space outside the core body is divided into a plurality of curved flow channels with the same size by the guide vane, and the guide vane is provided with a boss. The split part is subjected to glue assembly after injection molding, so that the split guide vane has a simple overall structure and firm internal connection, and meets the requirements of space guide vane body injection molding and demolding and lightweight production.
Description
Technical Field
The utility model relates to the technical field of space guide vane bodies, in particular to an injection molding shell and a guide core of a space guide vane body.
Background
The space guide vane body is an important part for converting mechanical energy into liquid potential energy by the centrifugal water pump. The water pump drives the water pump impeller to rotate at a high speed through the prime motor (the motor or the internal combustion engine) so as to convert the rotating mechanical energy into the pressure and speed potential energy of the liquid, wherein the impeller outlet speed potential energy is larger than the pressure potential energy in proportion. Because the liquid velocity potential energy is difficult to utilize, the water pump must change the velocity potential energy of liquid into pressure potential energy in order to utilize, and space stator body is the spare part that changes liquid velocity potential energy into pressure potential energy.
The space guide vane body is a semi-closed structure consisting of a plurality of three-dimensional curved surfaces. The prior space guide vane bodies are all formed by metal casting or stamping welding. The metal casting space guide vane body is integrally cast by adopting a sand mold, so that casting is relatively easy due to the easy crumbling property of the casting mud core, and the metal casting space guide vane body can be integrally formed, but the casting mud core cannot be reused, and the production efficiency is low. The stamping space guide vane body respectively stamps and forms a plurality of space curved surfaces, and then spot welding and forming are carried out after the space guide vane body is assembled, and the production mode is more in parts and processing operation procedures and more troublesome processing procedures because of more assembled parts. In general, the space guide vane body manufactured by the traditional process has heavy overall weight, high manufacturing cost and low processing efficiency, and is difficult to meet the requirements of light weight and high manufacturing efficiency of the current water pump.
With the weight reduction of water pumps and the demands for reducing the manufacturing cost and improving the manufacturing efficiency, the use of plastics for manufacturing water pump components has become a great trend in the manufacture of small pumps. Therefore, the design and manufacture of the plastic space guide vane body are imperative. However, due to the semi-closed structure of the space vane body, the space vane body cannot be manufactured by adopting a traditional integral injection molding mode (the inner core cannot be pulled out), and cannot be manufactured by adopting a welding mode (the strength of plastic is low and the limitation of the plastic welding process is self). Therefore, there is a need to develop a structure that can meet the manufacturing requirements of plastic space vane bodies.
Disclosure of Invention
The utility model provides an injection molding shell of a space guide vane body, which adopts an injection molding structure, can be assembled into the space guide vane body together with an injection molding guide core and an inserting sheet which are matched for use, and can reduce the quality of the space guide vane body, reduce the manufacturing cost of the space guide vane body and improve the production efficiency while the mechanical strength can meet the design requirement. Correspondingly, the utility model also provides an injection molding guide core matched with the injection molding shell.
In order to solve the technical problems, the utility model discloses an injection molding shell of a space guide vane body, wherein the inner side wall of the shell comprises a first cylindrical surface, an arc surface and a second cylindrical surface, the first cylindrical surface and the second cylindrical surface are respectively arranged at two ends of the inner wall of the shell, two sides of the arc surface are respectively connected with the first cylindrical surface and the second cylindrical surface, and a group of mounting grooves for assembling a guide core and an inserting sheet which are matched with each other are formed in the inner side wall of the shell; the end part of the shell is provided with a flange structure for connecting other water pump parts, the flange structure comprises a first flange and a second flange, and the first flange and the second flange are respectively arranged at two end parts of the shell.
Compared with the prior art, the injection molding shell can be assembled into the space guide vane body together with the injection molding guide core and the inserting sheet which are matched for use, and the special structure ensures that the mechanical strength of the space guide vane body can meet the design requirement, simultaneously, the quality is reduced, the manufacturing cost is reduced, and the production efficiency is improved; according to the utility model, the speed potential energy of the high-speed liquid flow is better converted into the pressure potential energy through the smooth curved surface by adopting an injection molding process, so that the energy loss in the energy conversion process is effectively reduced, in addition, the arrangement of the mounting groove can realize the limiting effect on the guide core of the space guide vane body during mounting, and the first flange and the second flange are respectively connected with the external water pump, so that the shell can bear larger pressure.
Further, hang the ear hole on the outer wall symmetry of casing, still be provided with the nameplate installation boss on the outer wall of casing, nameplate installation boss locates the both sides and hangs the axis position department in ear hole.
According to the technical scheme, the lifting lug holes are formed, so that the processes of lifting, transporting or lifting assembly and the like can be conveniently carried out on the shell and the assembled space guide vane body, the nameplate mounting boss can be convenient for mounting the nameplate, the nameplate mounting boss and the lifting lug holes are integrally formed with the shell, the whole structure is simple, and the occupied space is small.
Furthermore, the mounting groove is a dovetail groove, and an inclined groove surface is formed on the inner side of the mounting groove.
According to the technical scheme, the dovetail groove plays a limiting role on the inserting piece and the boss when the space guide blade body is assembled integrally, so that the diversion core and the inserting piece are effectively prevented from falling off when in use, the limiting fixing effect is good, the inserting piece is in a direct inserting mode, and the installation and the operation are convenient.
Further, the shell is formed by injection molding of reinforced nylon materials. It has excellent mechanical performance, high impact strength and high electric insulating performance.
The utility model discloses an injection molding guide core of a space guide vane body, which comprises a core body and a plurality of guide vanes arranged on the core body, wherein the guide vanes divide a circulation space outside the core body into a plurality of curved flow channels with the same size; the guide vane is provided with a boss, and the boss is matched with a mounting groove in the shell when the guide core is mounted in the shell of the space guide vane body.
Compared with the prior art, the injection molding process is adopted, so that energy loss can be effectively reduced when the flow channel smoothness is improved and the liquid velocity potential energy is converted into pressure potential energy, the internal structure is reasonable in arrangement, the guide vane and the mounting groove in the shell are correspondingly capable of limiting the guide core, and the stability of the internal structure is improved.
Further, the guide vane comprises a guide vane outer circular surface, and the boss is arranged on the guide vane outer circular surface.
In the technical scheme of the utility model, the boss is arranged on the outer circumferential surface of the guide vane, the guide vane is not influenced to be matched with the inner wall of the shell when the guide core is installed in the shell, and meanwhile, the boss is matched with the installation groove to limit the guide core in the shell, so that the guide core is prevented from rotating or falling off due to the impact of liquid velocity potential energy, and the stability of the internal structure is better.
Furthermore, the guide core is formed by injection molding of reinforced nylon materials, and the guide core not only has better surface finish, but also has better physical and mechanical properties and better tensile, bending and tensile strength through the injection molding of the reinforced nylon materials.
Drawings
FIG. 1 is a perspective view of a spatial vane body of the present utility model;
FIG. 2 is a front view of a spatial vane body of the present utility model;
FIG. 3 is a perspective view of the space vane body of the present utility model with the guide core removed;
FIG. 4 is a perspective view of a space vane body insert of the present utility model;
FIG. 5 is a front view of a space vane body insert of the present utility model;
FIG. 6 is a perspective view of a housing of the present utility model;
FIG. 7 is a rear perspective view of the housing of the present utility model;
FIG. 8 is a perspective view of a diverter core according to the present utility model;
FIG. 9 is a schematic view of a diversion core structure of the present utility model;
wherein: 1 is a shell, 101 is a first cylindrical surface, 102 is an arc surface, 103 is a second cylindrical surface, 104 is a mounting groove, 1041 is an inclined groove surface, 105 is a flange structure, 1051 is a first flange, 1052 is a second flange, 106 is a lug hole, 107 is a nameplate mounting boss, 2 is a guide core, 201 is a core body, 202 is a guide vane, 2021 is an outer circular surface of the guide vane, 203 is a boss, 204 is a curved flow channel, 3 is an inserting piece, 4 is a containing cavity, 5 is a limit mounting area, 6 is an inclined baffle surface, 601 is a tip part and 602 is a connecting part.
Description of the embodiments
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model. The contents not described in detail below are all within the knowledge of the skilled in the art.
Referring to fig. 1 to 5, a space guide vane body assembled by an injection molding shell, an injection molding guide core and an inserting sheet, includes: the shell 1, the guide core 2 and the inserting sheet 3 are formed by injection molding; the shell 1 is internally provided with a containing cavity 4 communicated with two ends of the shell 1, and the flow guide core 2 is arranged in the containing cavity 4 and is in limit connection with the shell 1; the inserted sheet 3 is inserted in the mounting groove 104 of the shell 1, the boss 203 of the guide core 2 is matched with the mounting groove 104 and the inserted sheet 3 and limits the guide core 2 in the accommodating cavity 4 of the shell 1, the contact parts of the shell 1, the guide core 2 and the inserted sheet 3 are fixed through gluing, a limit mounting area 5 is formed between the inserted sheet 3 and the chute face 1041 of the mounting groove 104, and the boss 203 is arranged in the limit mounting area 5 and limits the guide core 2 in the shell 1.
Therefore, when the guide core 2 is installed in the shell 1, the outer circumferential surface of the guide core 2 is in contact fit with the inner wall surface of the shell 1, energy loss is avoided by the way of viscose, liquid is prevented from flowing through the contact part between the guide core 2 and the shell 1, the space guide vane body formed by 3 parts of the shell 1, the guide core 2 and the inserting sheet 3 is small in number of parts of the whole structure, the assembly process is simple, the guide core 2 can be limited in the accommodating cavity 4 of the shell by the arrangement fit of the boss 203, the mounting groove 104 and the inserting sheet 3, so that the liquid flows through the space flow channel formed by the inner wall of the shell 1 and the guide core 2 to further convert speed potential energy into pressure potential energy, and the whole structure is simple, and meets the production requirement of the lightweight space guide vane body.
As optimization, one end of the inserting piece 3 is provided with an inclined blocking surface 6, and the inclined blocking surface 6 is matched with the boss 203; the inclined blocking surface 6 comprises a tip 601 and a connecting portion 602, the height of the tip 601 from the inserting piece 3 is higher than that of the connecting portion 602, and the tip 601 is in arc transition with the connecting portion 602.
Therefore, the oblique stop surface 6 can enable the inserting sheet 3 to be matched with the boss 203 when being installed in the installation groove 104, and the arrangement of the tip part 601 and the connecting part 602 enables one end of the inserting sheet 3 placed in the shell 1 to be adhered to the inner wall of the shell 1 and form curved arc transition, so that the upper end surface of the inserting sheet 3 is prevented from being higher than the inner wall surface of the shell 1 to further influence the conversion of liquid velocity potential energy; the diversion core 2 and the shell 1 are formed by integrally injection molding reinforced nylon materials (PA 66+30 GF). The surface finish of the guide core 2, the shell 1 and the space guide vane body spliced by the guide core and the shell can be effectively improved by adopting reinforced nylon material for injection molding, and meanwhile, the guide vane has the advantages of good physical and mechanical properties, high strength, special thermal stability and hydrolysis resistance, and good tensile, bending and tensile strength so as to meet the use requirements of the space guide vane body.
According to the embodiment, one semi-closed structure part which cannot be demolded is split into three open parts, so that the requirement of injection molding and demolding of the space guide vane body is met, the whole weight of the space guide vane body is lighter, the cost is reduced compared with that of metal manufacturing, and meanwhile, the production efficiency is higher; through the cooperation of boss and inserted sheet and mounting groove, make space stator body inner structure steadiness after accomplishing the equipment higher, avoid the great speed potential energy of liquid to strike and cause the energy loss, improve energy conversion effect, satisfy the production demand of space stator body lightweight and make its hydraulic property better simultaneously.
Referring to fig. 1-7, an injection molding shell of a space vane body, wherein the inner side wall of a shell 1 comprises a first cylindrical surface 101, an arc surface 102 and a second cylindrical surface 103, the first cylindrical surface 101 and the second cylindrical surface 103 are respectively arranged at two ends of the inner wall of the shell 1, two sides of the arc surface 102 are respectively connected with the first cylindrical surface 101 and the second cylindrical surface 103, and a group of mounting grooves 104 for assembling guide cores and inserting sheets which are matched with each other are formed in the inner side wall of the shell 1; the end of the housing 1 is provided with a flange structure 105 for connecting other water pump parts, the flange structure 105 comprises a first flange 1051 and a second flange 1052, and the first flange 1051 and the second flange 1052 are respectively arranged at two ends of the housing 1. The injection molding process is adopted to better convert the speed potential energy of the high-speed liquid flow into pressure potential energy through the smooth curved surface, so that the energy loss in the energy conversion process is effectively reduced.
As an optimization, lifting lug holes 106 are symmetrically formed in the outer wall of the shell 1, nameplate mounting bosses 107 are further arranged on the outer wall of the shell 1, and the nameplate mounting bosses 106 are arranged at the central axis positions of the lifting lug holes 106 on the two sides. Therefore, the lifting lug hole 106 and the nameplate mounting boss 107 are integrally formed with the shell 1, the lifting lug hole 106 can facilitate the procedures of lifting, transporting or lifting and assembling the shell 1 and the assembled space guide vane body or the water pump whole machine, and the nameplate mounting boss 107 can facilitate the installation of nameplates, and has simple overall structure and small occupied space.
Preferably, the mounting groove 104 is a dovetail groove, and the inner side of the mounting groove 104 is formed with a chute surface 1041. From this, the dovetail can play spacing effect to the boss 203 of water conservancy diversion core 2, prevents effectively that water conservancy diversion core 2 and inserted sheet 3 from coming off when using, and spacing fixed effect is good and the inserted sheet is the mode of cut straightly, installation convenient operation
According to the embodiment, through the combination of the cylindrical surface and the cambered surface, the integral stability of the integral structure can be improved by utilizing the process characteristics of injection molding, and the speed potential energy of high-speed liquid flow can be better converted into pressure potential energy through the smooth cambered surface, so that the energy loss in the energy conversion process is effectively reduced.
Referring to fig. 8 and 9, the injection molding guide core of the space vane body comprises a core body 201 and a plurality of guide vanes 202 arranged on the core body 201, wherein the guide vanes 202 divide a circulation space outside the core body 201 into a plurality of curved flow passages 204 with the same size, the guide vanes 202 are formed with bosses 203, and the bosses 203 respectively correspond to the mounting grooves 104 in the casing 1 when the guide core 2 is mounted in the space vane body casing 1.
Therefore, the flow guide vane 202 divides the flowing space into the curved flow channels 204 to enable the flow velocity of the flow channels inside to be changed uniformly, energy loss can be effectively reduced when the liquid velocity potential energy is converted into pressure potential energy, the internal structure is reasonable in arrangement, the flow guide vane 202 and the mounting groove 104 can correspondingly play a limiting role on the flow guide core 5, and the stability of the internal structure is improved.
As an optimization, the guide vane 202 includes a guide vane outer circumferential surface 2021, the boss 203 is disposed on the guide vane outer circumferential surface 2021, and the boss 203, the guide vane 202 and the core 2021 are integrally formed.
From this, the boss 203 is located on the outer periphery of guide vane 202, does not influence guide vane 202 and the inner wall cooperation of casing 1 when guide vane 2 installs in casing 1, and the boss 203 can be spacing guide vane 2 in casing 1 with mounting groove 104 cooperation simultaneously, avoids making guide vane 2 rotate or drop because of the impact of liquid velocity potential energy, makes internal structure stability better.
In this embodiment, the flow guide vane 202 divides the flow space into the curved flow channels 204 to enable the flow velocity of the flow channels inside to change uniformly, and can effectively reduce energy loss when the liquid velocity potential energy is converted into pressure potential energy, the internal structure is set reasonably, and the flow guide vane and the installation groove in the shell correspond to each other and can play a limiting role on the flow guide core, so that the stability of the internal structure is improved.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (4)
1. Injection molding shell of space stator body, its characterized in that: the inner side wall of the shell (1) comprises a first cylindrical surface (101), an arc surface (102) and a second cylindrical surface (103), the first cylindrical surface (101) and the second cylindrical surface (103) are respectively arranged at two ends of the inner wall of the shell (1), two sides of the arc surface (102) are respectively connected with the first cylindrical surface (101) and the second cylindrical surface (103), and a group of mounting grooves (104) for assembling a guide core (2) and an inserting sheet (3) which are matched with each other are formed in the inner side wall of the shell (1); the end part of the shell (1) is provided with a flange structure (105) for connecting other water pump parts, the flange structure (105) comprises a first flange (1051) and a second flange (1052), and the first flange (1051) and the second flange (1052) are respectively arranged at two end parts of the shell (1).
2. The injection molded housing of a space vane body as claimed in claim 1, wherein: the novel anti-theft alarm is characterized in that lug hanging holes (106) are symmetrically formed in the outer wall of the shell (1), nameplate mounting bosses (107) are further arranged on the outer wall of the shell (1), and the nameplate mounting bosses (107) are arranged at the central axis positions of the lug hanging holes (106) on the two sides.
3. The injection molded housing of a space vane body as claimed in claim 1, wherein: the mounting groove (104) is a dovetail groove, and a chute surface (1041) is formed on the inner side of the mounting groove (104).
4. The injection molded housing of a space vane body as claimed in claim 1, wherein: the shell (1) is formed by injection molding of reinforced nylon materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306582.0U CN219774444U (en) | 2023-02-24 | 2023-02-24 | Injection molding shell of space guide vane body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306582.0U CN219774444U (en) | 2023-02-24 | 2023-02-24 | Injection molding shell of space guide vane body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774444U true CN219774444U (en) | 2023-09-29 |
Family
ID=88133110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320306582.0U Active CN219774444U (en) | 2023-02-24 | 2023-02-24 | Injection molding shell of space guide vane body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774444U (en) |
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2023
- 2023-02-24 CN CN202320306582.0U patent/CN219774444U/en active Active
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