CN216589206U - Tunnel construction axial fan - Google Patents
Tunnel construction axial fan Download PDFInfo
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- CN216589206U CN216589206U CN202123114948.4U CN202123114948U CN216589206U CN 216589206 U CN216589206 U CN 216589206U CN 202123114948 U CN202123114948 U CN 202123114948U CN 216589206 U CN216589206 U CN 216589206U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model discloses an axial flow fan for tunnel construction, which comprises a motor section and a silencing barrel section, wherein two ends of the motor section are respectively and coaxially connected with the silencing barrel section through flanges, a motor mounting barrel plate is coaxially connected in the motor section through a plurality of guide vanes which are uniformly distributed on the circumference, a motor is mounted on the flange plate of the motor mounting barrel plate, a hub is mounted on a motor shaft which extends forwards of the motor, and a plurality of blades are uniformly distributed on the circumference of the periphery of the hub; the guide vanes and the blades are all in a GOE wing shape with a low Reynolds number. According to the tunnel construction axial flow fan, the blades are designed in an optimized wing shape, the structure is exquisite, the wind resistance is small, energy is saved, the efficiency is high, and the operation cost is reduced.
Description
Technical Field
The utility model relates to the technical field of axial flow fans, in particular to an axial flow fan for tunnel construction.
Background
The axial flow fan has a wide application range, namely, the axial flow fan and the fan of the air conditioner external unit are airflow in the same direction as the shaft of the fan blade, such as an electric fan, and the fan operates in an axial flow mode. The "axial flow" is so called because the gas flows parallel to the fan axis. Axial flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial fan fixes a position and flows air axially.
In a longer tunnel construction project, fresh air needs to be input into a construction interface to ensure the safety of construction operators. Most of axial flow fans used in tunnel construction have the problems of large wind resistance, large energy consumption, low efficiency and the like, and have low operation economic benefit.
Therefore, it is necessary to develop an axial flow fan for tunnel construction aiming at the above defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an axial flow fan for tunnel construction, which has the advantages of optimized wing section design of blades, exquisite structure, small wind resistance, energy conservation, high efficiency and reduced operation cost.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model relates to an axial flow fan for tunnel construction, which comprises a motor section and a silencing barrel section, wherein two ends of the motor section are respectively and coaxially connected with the silencing barrel section through flanges; the guide vanes and the blades are all in the shape of GOE wing with low Reynolds number.
Further, still include collector and diffuser, the collector is installed at the air inlet the amortization section of thick bamboo section outer end carries out the rounding off direction to the air inlet, the diffuser is installed at the air-out the amortization section of thick bamboo section outer end is connected and is derived the tuber pipe.
Furthermore, the device also comprises a mesh protection sheet which is fixedly connected to the outer port of the current collector.
Furthermore, the middle part of the hub is connected to the motor shaft through a shaft sleeve, a hole in the shaft sleeve is connected to the motor shaft through a key and the end part of the shaft sleeve is locked by a gland axial bolt.
Furthermore, the double flange edges at the root part of the hub are connected to the shaft sleeve, and a hub cover which is smoothly protruded is arranged in front of the hub.
Further, the number of the guide vanes is consistent with that of the blades, and the radial installation positions of the guide vanes are consistent with that of the blades.
Further, a base support plate is mounted at the bottom of the motor section through a bolt, and an electric cabinet is arranged on the side wall of the motor section; the flow deflector is of a hollow structure, and a cable and a lubricating oil pipe are arranged in the flow deflector close to the electric cabinet.
Furthermore, the number of the motor sections is two, and the two motor sections are connected together in series through flange connection.
Furthermore, the top of the motor section and the top of the silencing cylinder section are both provided with hoisting holes or hoisting rings independently.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the tunnel construction axial flow fan, the motor is installed by coaxially arranging the motor installation barrel plate in the motor section, so that wind resistance caused by using a motor support is avoided, the plurality of guide vanes uniformly distributed on the circumference support the motor installation barrel plate while reverse twisting wind flow is achieved, and the structural design is ingenious. Simultaneously, motor installation bobbin plates can be in coordination with wheel hub and lead to the windage that reduces motor housing and cause. According to the axial flow fan for tunnel construction, the blades are optimized in wing type design, the structure is exquisite, the wind resistance is small, energy is saved, the efficiency is high, and the operation cost is reduced.
In addition, the radial installation positions of the guide vanes are consistent with the blades, the blades in front pressurize and accelerate wind, the guide vanes in rear twist and guide axial flow wind, rotary wind resistance is reduced, and wind outlet efficiency is improved. The arrangement of cable conductor and lubricating oil pipe is carried out through the water conservancy diversion piece that is provided with well cavity, and the hidden line of walking that can do has avoided walking the line in a jumble, has reduced the windage. The smooth guiding of air inlet and air outlet can be increased and the wind resistance can be reduced by arranging the current collector and the diffuser; through protecting wire net piece welded connection on the outer port of collector, can carry out the edulcoration protection to the air inlet, avoid the bulk debris to get into and damage the blade. The motor shaft is detachably connected between the motor shaft and the hub through the shaft sleeve, so that the motor shaft is convenient to detach and maintain and has a reasonable structure; the shaft sleeve is connected through the double flange edges at the root part of the hub, so that the connection strength and rigidity of the root part are improved, and the operation process is more stable; through the setting of hubcap, can lead the air at middle part, reduced the windage. Through the mode of series connection motor section, can increase wind pressure and air output, modular design, the stack integration back of being convenient for adapts to different operating modes. The motor section and the silencing barrel section are respectively provided with an independent hoisting hole or hoisting ring, so that flexible field installation and disassembly are facilitated.
Drawings
The utility model is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic sectional view of an axial flow fan for tunnel construction according to the present invention;
FIG. 2 is a left side view structural schematic diagram of an axial flow fan for tunnel construction according to the present invention;
FIG. 3 is a schematic view of a portion I of FIG. 1;
fig. 4 is a schematic perspective view of a motor segment casing according to the present invention.
Description of reference numerals: 1. a motor section; 101. an electric cabinet; 102. a machine base support plate; 2. a silencer section; 3. a flow-collecting hood; 4. protecting the net sheet; 5. a diffuser; 6. a flow deflector; 7. a motor mounting plate cylinder; 8. a motor; 801. a motor shaft; 9. a hub; 901. a hubcap; 10. a shaft sleeve; 11. a blade; 12. and (7) pressing the cover.
Detailed Description
The core of the utility model is to provide the axial flow fan for tunnel construction, the blades are optimized in wing type design, the structure is exquisite, the wind resistance is small, the energy is saved, the efficiency is high, and the operation cost is reduced.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to the drawings, fig. 1 is a schematic sectional view of a tunnel construction axial flow fan in a main view; FIG. 2 is a left side view structural schematic diagram of an axial flow fan for tunnel construction according to the present invention; FIG. 3 is a schematic view of a portion I of FIG. 1; fig. 4 is a schematic perspective view of a motor segment casing according to the present invention.
In a specific embodiment, as shown in fig. 1 to 4, an axial flow fan for tunnel construction includes a motor section 1 and a noise reduction cylinder section 2, wherein two ends of the motor section 1 are respectively coaxially connected to one noise reduction cylinder section 2 through flange bolts. A plurality of flow deflectors 6 which are uniformly distributed on the circumference in the motor section 1 are coaxially connected with a motor installation tube plate 7, the motor installation tube plate 7 is in a short cylinder shape, a motor 8 is installed on a flange plate at the front end part of the motor installation tube plate 7, and the motor 8 is preferably a multi-stage variable speed motor. A motor shaft 801 extending forward from the motor 8 is provided with a hub 9, and a plurality of blades 11 are uniformly arranged on the periphery of the hub 9. The guide vanes 6 and the blades 11 both adopt GOE airfoil shapes with low Reynolds numbers.
Through the coaxial motor installation bobbin creel 7 installation motor 8 that sets up in motor section 1, avoided using the motor support and the windage that brings, a plurality of deflectors 6 of circumference equipartition support motor installation bobbin creel 7 when playing reverse torsion wind current, structural design is ingenious. Meanwhile, the motor installation barrel plate 7 can guide wind flow in cooperation with the hub 9 to reduce wind resistance caused by a motor shell. According to the axial flow fan for tunnel construction, the blades are optimized in wing type design, the structure is exquisite, the wind resistance is small, energy is saved, the efficiency is high, and the operation cost is reduced.
In an embodiment of the present invention, as shown in fig. 1 and 4, the number of the guide vanes 6 corresponds to the number of the blades 11, and the radial installation position of the guide vanes 6 corresponds to the radial installation position of the blades 11.
Specifically, as shown in fig. 1 and 4, a base support plate 102 is mounted at the bottom of the motor section 1 through bolts, two base support plates 102 support and mount the whole motor, and an electric cabinet 102 is disposed on a side wall of the motor section 1. The flow deflector 6 is of a hollow structure, and a cable for supplying power to the motor 8 and a lubricating oil pipe for supplementing lubricating oil are arranged in the flow deflector 6 close to the electric cabinet 102.
The radial installation position of the guide vane 6 is consistent with that of the blades 11, the blades 11 in front pressurize and accelerate wind, the guide vane 6 at the rear twists and guides axial flow wind, rotary wind resistance is reduced, and air outlet efficiency is improved. The arrangement of cable conductor and lubricating oil pipe is carried out through the water conservancy diversion piece 6 that is provided with well cavity, and the hidden line of walking that can do has been avoided walking the line in a jumble, has reduced the windage.
In an embodiment of the present invention, as shown in fig. 1 and 2, the axial flow fan for tunnel construction of the present invention further includes a collector 3 and a diffuser 5, and the collector 3 and the diffuser 5 are both in a bell shape with the enlarged opening end facing outward. Collector 3 installs and carries out the rounding off direction in the air inlet in the 2 outer ends of amortization section of thick bamboo of air inlet, and diffuser 5 installs and leads out the tuber pipe in the 2 outer ends of amortization section of thick bamboo of air-out.
Specifically, as shown in fig. 1 and 2, the axial flow fan for tunnel construction further includes a mesh protecting sheet 4, and the mesh protecting sheet 4 is welded to an external port of the current collector 3.
The smooth guiding of air inlet and air outlet can be increased and the wind resistance can be reduced by arranging the current collector 3 and the diffuser 5; through protecting net piece 4 welded connection on the outer port of collector 3, can carry out the edulcoration protection to the air inlet, avoid the bulk debris to get into and damage blade 11.
In one embodiment of the present invention, as shown in fig. 1 and 3, the middle of the hub 9 is connected to the motor shaft 801 through a bushing 10, the hole in the bushing 10 is keyed to the motor shaft 801 and is locked at the end by a gland 12 axial bolt, and a left-hand screw is used for locking to avoid falling off.
Specifically, as shown in fig. 1 and 3, the hub 9 is connected to the hub 10 at the root portion thereof with double flange sides, and a hub cover 901 is provided in front of the hub 9 to smoothly protrude.
The motor shaft 801 and the hub 9 are detachably connected through the shaft sleeve 10, so that the motor shaft is convenient to detach and maintain and has a reasonable structure; the shaft sleeve 10 is connected through the double flange edges at the root part of the hub 9, so that the connection strength and rigidity of the root part are improved, and the operation process is more stable; through the setting of hubcap 901, the air in the middle part can be guided, and the wind resistance is reduced.
In a specific embodiment of the utility model, the number of the motor sections 1 is two, and the two motor sections 1 are connected in series through flange bolts to form a secondary fan, so that the air pressure and the air volume are improved.
Specifically, as shown in fig. 1 and 4, the tops of the motor section 1 and the silencer cylinder section 2 are respectively provided with a hoisting hole or a hoisting ring.
Through the mode of series connection motor section 1, can increase wind pressure and air output, modular design, the stack integration back of being convenient for adapts to different operating modes. The motor section 1 and the silencing barrel section 2 are respectively provided with an independent hoisting hole or hoisting ring, so that flexible field installation and disassembly are facilitated.
When the axial flow fan for tunnel construction works, the motor 8 runs, the motor shaft 801 drives the wheel hub 9 to rotate at a high speed, and then the impeller formed by the blades 11 is used for pressurizing and accelerating air to form axial flow wind. When the axial flow wind is conveyed backwards, the axial flow wind is twisted and guided through the guide vanes 6 with the same wing shape, and the rotating wind resistance is reduced.
According to the tunnel construction axial flow fan, the motor installation barrel plate 7 is coaxially arranged in the motor section 1, the motor 8 is installed, wind resistance caused by the use of a motor support is avoided, the motor installation barrel plate 7 is supported while reverse twisting wind flow is achieved by the aid of the plurality of guide vanes 6 uniformly distributed on the circumference, and the tunnel construction axial flow fan is ingenious in structural design. Meanwhile, the motor installation barrel plate 7 can guide wind flow in cooperation with the hub 9 to reduce wind resistance caused by a motor shell. According to the axial flow fan for tunnel construction, the blades are optimized in wing type design, the structure is exquisite, the wind resistance is small, energy is saved, the efficiency is high, and the operation cost is reduced. In addition, the radial installation position of the guide vane 6 is consistent with that of the blades 11, the blades 11 in front pressurize and accelerate wind, and the guide vane 6 in rear twists and guides axial flow wind, so that the rotary wind resistance is reduced, and the wind outlet efficiency is improved. The arrangement of cable conductor and lubricating oil pipe is carried out through the water conservancy diversion piece 6 that is provided with well cavity, and the hidden line of walking that can do has been avoided walking the line in a jumble, has reduced the windage. The smooth guiding of air inlet and air outlet can be increased and the wind resistance can be reduced by arranging the current collector 3 and the diffuser 5; through protecting net piece 4 welded connection on the outer port of current collector 3, can carry out the edulcoration protection to the air inlet, avoid the bulk debris to get into and damage blade 11. The motor shaft 801 is detachably connected between the hub 9 through the shaft sleeve 10, so that the motor shaft is convenient to detach and maintain, and the structure is reasonable; the shaft sleeve 10 is connected through the double flange edges at the root part of the hub 9, so that the connection strength and rigidity of the root part are improved, and the operation process is more stable; through the setting of hubcap 901, the air in the middle part can be guided, and the wind resistance is reduced. Through the mode of series connection motor section 1, can increase wind pressure and air output, modular design, the stack integration back of being convenient for adapts to different operating modes. The motor section 1 and the silencing barrel section 2 are respectively provided with an independent hoisting hole or hoisting ring, so that flexible field installation and disassembly are facilitated.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.
Claims (9)
1. The utility model provides a tunnel construction axial fan which characterized in that: the silencer comprises a motor section (1) and a silencer cylinder section (2), wherein two ends of the motor section (1) are respectively and coaxially connected with the silencer cylinder section (2) through flanges, a plurality of flow deflectors (6) uniformly distributed on the circumference are coaxially connected in the motor section (1) through motor mounting cylinder plates (7), a motor (8) is mounted on a flange plate of each motor mounting cylinder plate (7), a hub (9) is mounted on a motor shaft (801) which is forwards stretched out of the motor (8), and a plurality of blades (11) are uniformly distributed on the circumference of the outer circumference of the hub (9); the guide vanes (6) and the blades (11) both adopt GOE airfoil shapes with low Reynolds numbers.
2. The axial flow fan for tunnel construction according to claim 1, wherein: still include collector (3) and diffuser (5), install collector (3) the air inlet the smooth guidance is carried out to the air inlet in silencing barrel section (2) outer end, diffuser (5) are installed the air-out silencing barrel section (2) outer end is connected and is derived the tuber pipe.
3. The axial flow fan for tunnel construction according to claim 2, wherein: the current collector also comprises a mesh protection sheet (4), wherein the mesh protection sheet (4) is fixedly connected to an external port of the current collector (3).
4. The axial flow fan for tunnel construction according to claim 1, wherein: the middle part of the hub (9) is connected to the motor shaft (801) through a shaft sleeve (10), and a hole key in the shaft sleeve (10) is connected to the motor shaft (801) and is locked at the end part by adopting a gland (12) axial bolt.
5. The axial flow fan for tunnel construction according to claim 4, wherein: the double flange edges at the root part of the hub (9) are connected to the shaft sleeve (10), and a hub cover (901) which is smoothly protruded is arranged in front of the hub (9).
6. The axial flow fan for tunnel construction according to any one of claims 1 to 5, characterized in that: the number of the guide vanes (6) is consistent with that of the blades (11), and the radial installation positions of the guide vanes (6) are consistent with that of the blades (11).
7. The axial flow fan for tunnel construction according to claim 6, wherein: a base support plate (102) is mounted at the bottom of the motor section (1) through a bolt, and an electric cabinet (101) is arranged on the side wall of the motor section (1); the flow deflector (6) is of a hollow structure, and a cable and a lubricating oil pipe are arranged in the flow deflector (6) close to the electric cabinet (101).
8. The axial flow fan for tunnel construction according to claim 1, wherein: the number of the motor sections (1) is two, and the two motor sections (1) are connected in series through flange connection.
9. The axial flow fan for tunnel construction according to claim 8, wherein: and hoisting holes or hoisting rings are respectively and independently arranged at the tops of the motor section (1) and the silencing cylinder section (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123114948.4U CN216589206U (en) | 2021-12-13 | 2021-12-13 | Tunnel construction axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123114948.4U CN216589206U (en) | 2021-12-13 | 2021-12-13 | Tunnel construction axial fan |
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| Publication Number | Publication Date |
|---|---|
| CN216589206U true CN216589206U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123114948.4U Active CN216589206U (en) | 2021-12-13 | 2021-12-13 | Tunnel construction axial fan |
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|---|---|
| CN (1) | CN216589206U (en) |
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2021
- 2021-12-13 CN CN202123114948.4U patent/CN216589206U/en active Active
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