CN214465099U - Fan impeller - Google Patents
Fan impeller Download PDFInfo
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- CN214465099U CN214465099U CN202120367336.7U CN202120367336U CN214465099U CN 214465099 U CN214465099 U CN 214465099U CN 202120367336 U CN202120367336 U CN 202120367336U CN 214465099 U CN214465099 U CN 214465099U
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Abstract
The utility model discloses a fan impeller, include: the fan impeller comprises a non-metal integrally-formed fan impeller main body, wherein the non-metal integrally-formed fan impeller main body comprises a first side plate, a central shaft is arranged in the center of the first side plate, and blades are uniformly arranged on the first side plate; and the second side plate is fixedly connected with the blade on the non-metal integrally-formed main body. The non-metal integrally-formed fan impeller main body is of a thermosetting resin structure. And a fabric reinforcing layer is arranged in the thermosetting resin structure. The utility model provides a nonmetal fan wheel, this fan wheel have advantages such as light in weight, non-deformable, steady quality, corrosion resistance are strong, acid and alkali-resistance. The fan impeller product is integrally formed, and has the advantages of high efficiency, high precision and the like, and the manufactured fan impeller has low noise and good dynamic balance performance. The fabric reinforcing material is arranged in the fan impeller product, so that the strength of the fan impeller product is further improved, and the fan impeller product is not easy to deform.
Description
Technical Field
The utility model relates to a fan wheel technical field especially relates to a large-scale fan wheel who is made by non-metallic material.
Background
The blower is a machine which increases the pressure of gas and discharges the gas by means of the input mechanical energy. It is a driven fluid machine. In China, a fan is a short habit for gas compression and gas conveying machinery, and the fan generally comprises: ventilators, blowers, wind generators, and the like.
The impeller is a key component of the fan, and the mass and performance of the impeller determine the mass of the whole fan. The traditional impeller is mostly made of metal materials by casting and welding, and has the following defects:
1. the impeller has unstable quality and poor corrosion resistance;
2. violent vibration and huge noise are generated in the running process of the impeller, so that the motor is unstable in running and low in efficiency.
3. Low precision, high cost and short service life.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application solves the problems of unstable quality, poor corrosion resistance, large noise, low precision, high cost and the like of a metal impeller in the prior art by providing the nonmetallic fan impeller, can prepare the large-scale nonmetallic fan impeller by using the thermosetting resin raw materials and the reaction injection molding process, and realizes the beneficial effects of difficult deformation, stable quality, strong corrosion resistance, acid and alkali resistance, large specification, high efficiency, high precision, small noise, good dynamic balance performance and the like of the fan impeller.
The embodiment of the application provides a fan wheel, includes:
the fan impeller comprises a non-metal integrally-formed fan impeller main body, wherein the non-metal integrally-formed fan impeller main body comprises a first side plate, a central shaft is arranged in the center of the first side plate, and blades are arranged on the first side plate and are positioned on the periphery of the central shaft;
and the second side plate is fixedly connected with the blade on the non-metal integrally-formed main body.
Preferably, the non-metal integrally molded fan wheel main body is of a thermosetting resin structure.
More preferably, a fabric reinforcing layer is arranged in the non-metal integrally-formed fan impeller main body.
More preferably, a plurality of blades are arranged on the first side plate, and each blade is uniformly arranged along the periphery of the central shaft.
Preferably, the first side plate is a circular plate, and the center of the first side plate is cylindrical and extends to one side to form the central shaft.
More preferably, the second side plate is a circular plate.
Preferably, the second side plate and the blade on the non-metal integrally-formed main body are fixed through gluing.
Preferably, the second side plate is a thermosetting resin side plate.
More preferably, a fabric reinforcing layer is arranged in the thermosetting resin side plate.
Further, the fabric reinforcing layer is a fiber layer.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. the non-metal fan impeller with the thermosetting resin structure has the advantages of light weight, difficulty in deformation, stable quality, strong corrosion resistance, acid and alkali resistance and the like.
2. The fan impeller product is integrally formed, and has the advantages of high efficiency, high precision and the like, and the manufactured fan impeller has low noise and good dynamic balance performance.
3. The fabric reinforcing material is arranged in the fan impeller product, so that the strength of the fan impeller product is further improved, and the fan impeller product is not easy to deform.
Drawings
Fig. 1 is a perspective structural view of a fan impeller provided in a first embodiment of the present application;
fig. 2 is an integrated schematic view of a side plate, an impeller and a central shaft of a fan impeller provided in the first embodiment of the present application;
FIG. 3 is a schematic view of another side plate of a fan wheel provided in the first embodiment of the present application;
fig. 4 is a flowchart of a method for manufacturing a fan impeller provided in the second embodiment of the present application;
fig. 5 is a flowchart of a method for manufacturing a fan impeller provided in the third embodiment of the present application.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
Fig. 1 is a schematic structural diagram of a fan impeller provided in this embodiment, where the fan impeller includes a first side plate 1, blades 2, a central shaft 3, and a second side plate 4. Wherein, first curb plate 1, blade 2, center pin 3 are integrated into one piece structure, and this integrated into one piece structure and second curb plate 4 sticky fixed form complete fan wheel.
Specifically, the first side plate 1 is a circular plate, the center of the circular plate is cylindrical, and extends to one side to form a central shaft 3, the plurality of blades 2 are uniformly arranged on the circular plate, the plurality of blades 2 are clockwise arranged along the periphery of the central shaft 3, and the first side plate 1, the blades 2 and the central shaft 3 are of an integrally formed structure, as shown in fig. 2.
Furthermore, the integrated structure is integrally formed by thermosetting resin through a high-pressure resin transfer molding process, and a fabric reinforcing layer is arranged in the integrated structure.
As an alternative embodiment, the fabric reinforcement layer is a fibrous layer, such as: carbon fiber layers, chopped glass fiber layers, and the like.
As shown in fig. 3, the second side plate 4 is also a circular plate, and the second side plate 4 is fixed to the other side of each blade 2 in the integrally molded structure by glue.
The material of the second side plate 4 is the same as the material of the integrally molded structure.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
1. except one side plate, other parts of the fan impeller are integrally formed, so that the number of parts is reduced, the production efficiency is improved, and the production line investment is reduced;
2. the large-size fan impeller can be prepared, the diameter of the fan impeller can reach 70 meters, multi-component splicing is not needed, and the structure can be designed at will.
3. The fan impeller product is light in weight, not easy to deform, stable in quality, free of bubble pinholes, smooth in back, free of a release agent, strong in corrosion resistance and acid and alkali resistant.
4. The fan impeller product main body is made of thermosetting resin, and the fabric reinforcing layer is arranged in the thermosetting resin, so that the strength of the fan impeller is further improved.
Example two
In this embodiment, the fan impeller described in the first embodiment is prepared based on a brand-new high-pressure resin transfer molding process. Designing a double-sided mold according to the shape and specification of the fan impeller, manufacturing a preformed piece by adopting a fabric reinforced material, adopting thermosetting resin as an injection raw material, and quickly curing the thermosetting resin outside the fiber preformed piece in the closed double-sided mold to form a fan impeller product.
Thermosetting resin (thermosetting resin) refers to a resin which undergoes chemical change after being heated, gradually hardens and forms, is not softened after being heated, and cannot be dissolved. After the thermosetting resin is cured, a network structure is formed due to intermolecular crosslinking, so that the thermosetting resin has the advantages of high rigidity, high hardness, high temperature resistance, high heat distortion temperature, nonflammability, strong corrosion resistance, acid and alkali resistance, and good product size and performance stability.
The thermosetting resin includes: polyurethane PU, polydicyclopentadiene PDCPD, phenolic resin, urea resin, melamine-formaldehyde resin, epoxy resin, unsaturated resin, polyimide and the like.
The High Pressure-Resin Transfer Molding (HP-RTM) process adopts a preformed piece, utilizes High Pressure to carry out counter-impact mixing on Resin and inject the Resin into a vacuum closed mold on which the preformed piece is laid in advance, and obtains a composite material product through Resin flowing mold filling, impregnation, curing and demolding. When injecting glue, resin is injected into the closed die at high pressure, so that the rapid infiltration of the fiber and the excellent product performance are ensured, and the mass, short-period and high-quality production can be realized.
Based on the raw materials and the method, the large-scale non-metal fan impeller (more than 10 kg) can be prepared, and the prepared fan impeller is not easy to deform, stable in quality, strong in corrosion resistance, acid-base resistant, high in efficiency, high in precision, small in noise and good in dynamic balance performance.
Specifically, fig. 3 is a flowchart of a fan impeller manufacturing method provided in an embodiment of the present application, where the fan impeller manufacturing method includes the following steps:
step S1: and designing a double-sided mold of the fan impeller.
According to fan wheel's shape and specification, the fan wheel double-sided mould (upper and lower mould) that the design matches, promptly: when the upper die and the lower die of the fan impeller are closed, a cavity matched with the shape and the specification of the fan impeller is formed between the upper die and the lower die. And (3) placing a double-sided mold of the fan impeller in a press.
Step S2: and (3) manufacturing a fan impeller preformed piece by adopting a fabric reinforced material.
As an alternative embodiment, the textile reinforcement is a fiber, such as: carbon fibers, chopped glass fibers, and the like.
The manufacturing process of the fan impeller preformed piece is as follows:
s21: fixing a winding drum of the fiber fabric on a rotating shaft of an automatic cutting machine, inputting a preformed cutting pattern into the automatic cutting machine, and optimally arranging the cutting pattern; and (3) unfolding the fiber fabric winding drum, starting a cutting machine, automatically cutting the preformed body laying layer pattern, and sucking up the cut fiber laying layer by using a sucking disc of a mechanical arm.
S22: and transferring the cut fiber fabric to a pre-setting agent spraying device, starting the spraying device to uniformly spray the pre-setting adhesive on the surface of the fiber fabric, and moving the fiber fabric during spraying so that the pre-setting agent is uniformly sprayed on the surface of the fiber fabric.
S23: and transferring the fiber fabric coated with the fiber pre-shaping agent to a fabric laminating device, sequentially positioning and laminating the fiber fabric according to the designed fan impeller fiber laminating structure, and flatly paving the fiber fabric on a fabric laminating conveyor belt.
S24: and transferring the superposed fiber fabric to fiber preforming equipment by utilizing fabric superposing and conveying equipment, and shaping the fiber reinforcement under the heat and pressure action of the fiber preforming equipment.
S25: and transferring the fiber reinforcement body subjected to preheating and pre-pressing shaping into a preforming body cutting mold, covering the fiber reinforcement body by using a cutting sample mold, cutting the cut-off knife along the edge of the sample mold by using a mechanical arm according to the cutting sample mold, cutting off redundant fibers, and obtaining a fan impeller preforming body corresponding to the size of an injection mold cavity of the fan impeller double-sided mold.
Step S3: the injection raw material adopts polyurethane, the polyurethane raw material is prepared into two components of polyol and diisocynate, stock solutions of the two components are respectively stored in two containers, the containers are pressure containers, the temperature in each container is 25-38 ℃, the pressure in each container is 0.15-0.28 MPa, and the containers are filled with N2The viscosity and the appropriate reactivity of the raw material in the container are maintained at 1.5 pas or less.
Step S4: and (3) putting the fan impeller preformed piece into a fan impeller double-sided die of a press, closing the upper die and the lower die of the fan impeller, and locking the upper die and the lower die of the fan impeller by using a locking mechanism. And vacuumizing the injection mold cavities in the upper mold and the lower mold of the fan impeller under the condition of ensuring that the injection mold cavities are always sealed.
Step S5: under the action of a high-pressure metering pump, the two components of the polyol and the diisocynate in the two reservoirs enter a mixing head of an injection machine in a ratio of 1:1, and are subjected to high-pressure collision mixing in the mixing head, wherein the pressure in the mixing head is up to 10-20Mpa, and the high-pressure collision can generate a strong turbulent flow so as to realize the optimal mixing effect. And quickly injecting the uniformly mixed resin mixture into a high-temperature fan impeller mold cavity. The mixture is filled and infiltrated into the fan impeller preformed piece in the fan impeller mold cavity, and is rapidly solidified under the action of high temperature and high pressure.
Step S6: and opening the fan impeller mold and demolding.
Step S7: and (4) carrying out post-treatment on the fan impeller product after demoulding, including finishing, painting, heat treatment, packaging and the like. The heat treatment has two functions: the first is supplementary curing, and the second is baking after painting, so as to form a firm protective film or decorative film on the surface of the product. And further finishing and packaging to obtain a final fan impeller product.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
1. based on the combination of polyurethane raw materials and a brand-new high-pressure resin transfer molding process, the large-scale non-metal fan impeller can be prepared, and the bottleneck that only small-scale fan impellers can be prepared from non-metal materials is broken through.
2. Because of adopting polyurethane raw materials, the fan impeller has the advantages of light weight, difficult deformation, stable quality, strong corrosion resistance, acid and alkali resistance and the like.
3. The fan impeller is prepared by adopting a brand-new high-pressure resin transfer molding process, the fan impeller product is integrally molded, and the fan impeller has the advantages of high efficiency, high precision and the like, and the prepared fan impeller has low noise and good dynamic balance performance.
4. The fan impeller product made of polyurethane is internally provided with the fabric reinforcing material, so that the strength of the fan impeller product is further improved, and the fan impeller product is not easy to deform.
EXAMPLE III
Fig. 5 is a flowchart of a fan impeller manufacturing method provided in an embodiment of the present application, which is used for manufacturing the fan impeller described in the first embodiment, and the fan impeller manufacturing method includes the following steps:
step S1: and designing a double-sided mold of the fan impeller.
According to fan wheel's shape and specification, the fan wheel double-sided mould (upper and lower mould) that the design matches, promptly: when the upper die and the lower die of the fan impeller are closed, a cavity matched with the shape and the specification of the fan impeller is formed between the upper die and the lower die. And (3) placing a double-sided mold of the fan impeller in a press.
Step S2: and (3) manufacturing a fan impeller preformed piece by adopting a fabric reinforced material.
As an alternative embodiment, the textile reinforcement is a fiber, such as: carbon fibers, chopped glass fibers, and the like.
The manufacturing process of the fan impeller preformed piece is as follows:
s21: fixing a winding drum of the fiber fabric on a rotating shaft of an automatic cutting machine, inputting a preformed cutting pattern into the automatic cutting machine, and optimally arranging the cutting pattern; and (3) unfolding the fiber fabric winding drum, starting a cutting machine, automatically cutting the preformed body laying layer pattern, and sucking up the cut fiber laying layer by using a sucking disc of a mechanical arm.
S22: and transferring the cut fiber fabric to a pre-setting agent spraying device, starting the spraying device to uniformly spray the pre-setting adhesive on the surface of the fiber fabric, and moving the fiber fabric during spraying so that the pre-setting agent is uniformly sprayed on the surface of the fiber fabric.
S23: and transferring the fiber fabric coated with the fiber pre-shaping agent to a fabric laminating device, sequentially positioning and laminating the fiber fabric according to the designed fan impeller fiber laminating structure, and flatly paving the fiber fabric on a fabric laminating conveyor belt.
S24: and transferring the superposed fiber fabric to fiber preforming equipment by utilizing fabric superposing and conveying equipment, and shaping the fiber reinforcement under the heat and pressure action of the fiber preforming equipment.
S25: and transferring the fiber reinforcement body subjected to preheating and pre-pressing shaping into a preforming body cutting mold, covering the fiber reinforcement body by using a cutting sample mold, cutting the cut-off knife along the edge of the sample mold by using a mechanical arm according to the cutting sample mold, cutting off redundant fibers, and obtaining a fan impeller preforming body corresponding to the size of an injection mold cavity of the fan impeller double-sided mold.
Step S3: polydicyclopentadiene is adopted as an injection raw material, and the polydicyclopentadiene is prepared into two components, wherein the first component is high-purity polydicyclopentadiene and an auxiliary agent, and the second component is a catalyst; the two groups of raw materials are respectively stored in two containers.
Step S4: and (3) putting the fan impeller preformed piece into a fan impeller double-sided die of a press, closing the upper die and the lower die of the fan impeller, and locking the upper die and the lower die of the fan impeller by using a locking mechanism. And vacuumizing the injection mold cavities in the upper mold and the lower mold of the fan impeller under the condition of ensuring that the injection mold cavities are always sealed.
Step S5: under the action of a high-pressure metering pump, two components in the two containers enter a mixing head of an injection machine according to the proportion of 30-50: 1, and are subjected to high-pressure collision mixing in the mixing head, the pressure in the mixing head is up to 10-30 Mpa, and strong turbulence is generated by the high-pressure collision so as to realize the optimal mixing effect. And quickly injecting the uniformly mixed resin mixture into a high-temperature fan impeller mold cavity. The mixture is filled and infiltrated into the fan impeller preformed piece in the fan impeller mold cavity, and is rapidly solidified under the action of high temperature and high pressure.
Step S6: and opening the fan impeller mold and demolding.
Step S7: and (3) carrying out post-treatment on the fan impeller product after demoulding, wherein the post-treatment comprises water-based environment-friendly paint primer, finishing, water-based environment-friendly finish, heat treatment, inspection, packaging and the like, and the steps are shown in figure 3. The heat treatment has two functions: the first is supplementary curing, and the second is baking after painting, so as to form a firm protective film or decorative film on the surface of the product. And further finishing and packaging to obtain a final fan impeller product.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
1. based on the combination of polydicyclopentadiene raw material and brand-new high-pressure resin transfer molding process, the large-scale non-metal fan impeller can be prepared, and the bottleneck that only small-scale fan impellers can be prepared from non-metal materials is broken through.
2. Because of adopting polydicyclopentadiene as raw material, the fan impeller has the advantages of light weight, difficult deformation, stable quality, strong corrosion resistance, acid and alkali resistance and the like.
3. The fan impeller is prepared by adopting a brand-new high-pressure resin transfer molding process, the fan impeller product is integrally molded, and the fan impeller has the advantages of high efficiency, high precision and the like, and the prepared fan impeller has low noise and good dynamic balance performance.
4. The fan impeller product made of polyurethane is internally provided with the fabric reinforcing material, so that the strength of the fan impeller product is further improved, and the fan impeller product is not easy to deform.
It should be understood that the terms of orientation of up, down, left, right, front, back, top, bottom, etc., referred to or may be referred to in this specification, are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed accordingly depending on the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
While the foregoing is directed to the preferred embodiment of the present application, and not to the limiting thereof in any way and any way, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Those skilled in the art can make various changes, modifications and equivalent arrangements to those skilled in the art without departing from the spirit and scope of the present application; moreover, any equivalent alterations, modifications and variations of the above-described embodiments according to the spirit and techniques of this application are intended to be within the scope of the claims of this application.
Claims (10)
1. A fan wheel, comprising:
the fan impeller comprises a non-metal integrally-formed fan impeller main body, wherein the non-metal integrally-formed fan impeller main body comprises a first side plate, a central shaft is arranged in the center of the first side plate, and blades are arranged on the first side plate and are positioned on the periphery of the central shaft;
and the second side plate is fixedly connected with the blade on the non-metal integrally-formed main body.
2. The fan wheel of claim 1, wherein said non-metallic integrally formed fan wheel body is a thermoset resin construction.
3. The fan wheel of claim 1, wherein a fabric reinforcement layer is provided within the non-metallic integrally formed fan wheel body.
4. The fan impeller of claim 2, wherein the first side plate has a plurality of blades disposed thereon, each blade being disposed uniformly about the circumference of the central shaft.
5. The fan impeller of claim 1, wherein the first side plate is a circular plate, and the center of the first side plate is cylindrically extended to one side to form the central axis.
6. The fan wheel of claim 5, wherein the second side plate is a circular plate.
7. The fan wheel as in claim 1, wherein the second side plate is secured to the blades on the non-metallic integrally formed body by gluing.
8. The fan impeller of claim 1, wherein the second side plate is a thermoset resin side plate.
9. The fan impeller of claim 8, wherein a fabric reinforcement layer is provided within the thermosetting resin side plate.
10. The fan impeller of claim 9, wherein the fabric reinforcement layer is a fibrous layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120367336.7U CN214465099U (en) | 2021-02-09 | 2021-02-09 | Fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120367336.7U CN214465099U (en) | 2021-02-09 | 2021-02-09 | Fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214465099U true CN214465099U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120367336.7U Active CN214465099U (en) | 2021-02-09 | 2021-02-09 | Fan impeller |
Country Status (1)
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|---|---|
| CN (1) | CN214465099U (en) |
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2021
- 2021-02-09 CN CN202120367336.7U patent/CN214465099U/en active Active
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