CN111156176A - Hand-held spacer-free centrifugal type progressive supercharging blower - Google Patents
Hand-held spacer-free centrifugal type progressive supercharging blower Download PDFInfo
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- CN111156176A CN111156176A CN202010168309.7A CN202010168309A CN111156176A CN 111156176 A CN111156176 A CN 111156176A CN 202010168309 A CN202010168309 A CN 202010168309A CN 111156176 A CN111156176 A CN 111156176A
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- fan
- shell
- blower
- hole
- centrifugal
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- 230000000750 progressive effect Effects 0.000 title claims abstract description 57
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 74
- 125000006850 spacer group Chemical group 0.000 claims abstract description 18
- 239000004033 plastic Substances 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000004512 die casting Methods 0.000 claims description 3
- 238000004023 plastic welding Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/084—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/442—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps rotating diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/662—Balancing of rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the field of hardware and electric appliances, and relates to a handheld spacer-free centrifugal progressive supercharging blower applied to a plastic welding gun, which adopts an independently wired closed blower structure, takes a supercharging air duct without a spacer formed by the supercharging combination of a fan base (3) cut by fine work, a fan shell (4) and a multi-stage centrifugal progressive fan blade (27) as a core, combines the installation of front, middle and rear three-stage bearings directly connected with a motor, the design of two air outlets of the fan shell (4) and the special structure of the centrifugal progressive fan blade (27), realizes the low vibration, low noise, high air pressure and high air output of the handheld spacer-free centrifugal progressive supercharging blower, and ensures the long-term use of a high-power plastic welding gun with the power of more than 1200 watts.
Description
Technical Field
The invention belongs to the field of hardware and electric appliances, and relates to a handheld spacer-free centrifugal type progressive pressurizing air blower applied to a plastic welding gun.
Technical Field
At present, an air blower structure applied to a 1000-watt handheld plastic welding gun mainly comprises a motor, a fan bracket, a first-stage centrifugal fan blade, a fan liner with a spacer, a second-stage centrifugal fan blade, an air blower shell, a fixing nut of the fan blade, a sealing structure of the shell and the like. Wherein the fan bracket is arranged on the motor shell; the fan bracket, the fan liner with the spacer and the blower shell jointly form two air chambers with the spacer; the first-stage centrifugal fan blade and the second-stage centrifugal fan blade are sequentially arranged on the main shaft and are respectively arranged in the two air chambers; the electric wire sequentially penetrates through the fan bracket and the wire groove of the fan liner from the rear end of the air inlet to reach the front end of the second air chamber and is arranged on the wiring terminal in the fan shell; the power cord is connected to the ceramic heating core after the secondary switching of the binding post.
The wind pressure of this type fan output is less than 0.003MP and the vibration is big, the noise is high, when being used for 1200 watts and above high-power ceramic heating core's hot-blast output, the fever silk is serious, its leading reason is:
1. the fan shell and the motor spindle are in secondary connection, the deviation of the concentricity of the spindle is large, so that the fan blade concentrically mounted with the motor spindle must select an air gap larger than 1mm to operate, and the output wind pressure and wind quantity are insufficient due to the overlarge air gap.
2. The concentricity of the inner circle and the outer circle of the centrifugal fan blade has concentricity deviation due to the problems of materials and processes, so that a larger air gap is needed for the operation of the fan, and additional pressure loss is caused.
3. A pressure loss passage is formed by a gap between the wire groove penetrating from the air inlet to the second air chamber and the wire, so that secondary pressure loss of air pressure is caused.
4. The connection point of the fan bracket and the motor can not mechanically eliminate the polarization caused by the high-speed rotation of the fan blades, thereby reducing the efficiency of the fan.
5. The fan inner container structure with the spacer increases airflow turbulence in the air duct and reduces the fan efficiency.
Disclosure of Invention
Aiming at the existing problems, the invention adopts an independently wired closed blower structure, takes a pressurizing combination of a fan base (3) cut by fine work, a fan shell (4) and a multi-stage centrifugal type progressive fan blade (27) to jointly form a pressurizing air duct without a spacer as a core, and combines the installation of a front, a middle and a rear three-stage bearings of a motor direct connection; two air outlet designs of the fan shell (4) and the special structure of the centrifugal type progressive fan blade (27) realize low vibration, low noise, high air pressure and large air output of the handheld spacer-free centrifugal type progressive supercharging blower, and guarantee the long-term use of a high-power plastic welding gun with the power of more than 1200 watts.
To achieve the above object, the present invention has the following general structural and technical features:
hand-held no spacer centrifugal upgrades supercharging blower mainly comprises air-blower core, air-blower casing, control circuit board and electric wire (19), its characterized in that: the blower core is composed of a front bearing (12), a pressurizing combination of a multi-stage centrifugal progressive fan blade (27), a middle bearing (7), a motor rotor (6) and a rear bearing (5) which are sequentially arranged on a main shaft (11); the pressurizing combination of the multi-stage centrifugal type progressive fan blade (27) is formed by coaxially mounting a plurality of centrifugal type progressive fan blades (27); the centrifugal type progressive fan blade (27) is a whole and is respectively provided with a front baffle (33), an air inlet (34), a rear baffle (35), a centrifugal type blade (36), an axle hole (37) and an axle sleeve (38); the outer diameter of the front stop (33) is larger than that of the rear stop (35), and an air inlet (34) is formed; the rear gear (35) is connected with the shaft sleeve (38); the centrifugal blades (36) are respectively connected with a front stop (33), a rear stop (35) and a shaft sleeve (38); the shaft hole (37) is adapted to the main shaft (11); the blower shell is formed by coaxially mounting a motor rear end cover (1), a motor stator (2), a blower base (3), a blower shell (4) and a handheld plastic shell (18); the rear bearing (5) is arranged in the motor rear end cover (1); the middle bearing (7) is arranged in the fan base (3); the front bearing (12) is arranged in the fan shell (4); the motor rear end cover (1) and the motor stator (2) are sequentially connected and arranged on the fan base (3); the hand-held plastic shell (18) is arranged on the fan base (3); the combination of the blower core and the blower shell jointly forms a handheld spacer-free centrifugal supercharging blower.
The hand-held spacer-free centrifugal progressive blower of [0011], wherein: the pressurizing combination of the multi-stage centrifugal type progressive fan blade (27) is arranged behind the main shaft, and a coaxial finish turning process is adopted.
The hand-held spacer-free centrifugal progressive blower of [0011], wherein: the fan base (3) is coaxially provided with a wind shielding step (29); the inner circle of the wind shielding step (29) is sealed in a front baffle (13) of a first fan blade of a pressurizing combination of a multi-stage centrifugal type progressive fan blade (27) through an air gap; the front baffle (14) of the second fan blade of the supercharging combination of the multi-stage centrifugal progressive fan blade (27) is sealed in an inner stage (31) of the fan shell (4) by an air gap; a blower shell composed of the blower base (3) and the blower shell (4) and a front baffle (13) of a first fan blade, a rear baffle (8) of the first fan blade, a front baffle (14) of a second fan blade and a rear baffle (9) of the second fan blade which are combined in a pressurizing mode through multistage centrifugal type progressive fan blades (27) jointly form a pressurizing air duct without a spacer.
The hand-held spacer-free centrifugal progressive blower of [0011], wherein: the fan base (3) and the fan shell (4) are coaxially and hermetically mounted; an inner step (31) of the fan shell (4) is respectively sealed with a front baffle (13) of a first fan blade and a front baffle (14) of a second fan blade which are combined by the pressurization of the multistage centrifugal progressive fan blades (27) through air gaps; a blower shell composed of the blower base (3) and the blower shell (4) and a front baffle (13) of a first fan blade, a rear baffle (8) of the first fan blade, a front baffle (14) of a second fan blade and a rear baffle (9) of the second fan blade which are combined in a pressurizing mode through multistage centrifugal type progressive fan blades (27) jointly form a pressurizing air duct without a spacer.
The hand-held spacer-free centrifugal progressive blower of [0011], wherein: the fan base (3) is respectively provided with a threaded hole (21), a mounting hole (22), a long hole (23), a middle bearing mounting hole (24), a multiple air inlet hole (25), a step (26) and a wire slot II (28); the threaded hole (21) is a screw hole for fixing the handheld plastic shell (18); the mounting hole (22) is a screw hole for fixing the fan shell (4); the long hole (23) is a screw hole for fixing the motor stator (2); the middle bearing mounting hole (24) is used for mounting a middle bearing (7); the multiple air inlet holes (25) are coaxial air inlet holes; the step (26) is adapted to the outer circle of the motor stator (2); the second wire groove (28) is a passage of the electric wire (19).
The hand-held spacer-free centrifugal progressive blower of [0011], wherein: the outer part of the fan shell (4) is respectively provided with an air outlet hole (41), a radiating fin (42), a hole column (43), a wire column (44) and a threaded hole III (47); an inner step (31), a threaded hole II (39), a front bearing mounting hole (45) and a reinforcing rib (46) are respectively arranged in the fan shell (4); the air outlet hole (41) is a ring-shaped air outlet and is arranged at the concentric position of the front end of the fan shell (4); the radiating fins (42) are used for enhancing the mechanical strength of the fan shell (4) and improving the appearance; the hole column (43) is a threaded hole II (39); the wire column (44) is a passage for burying the electric wire (19) corresponding to the wire slot II (28) of the fan base (3); the threaded hole III (47) is used for installing a threaded hole of the hot air pipe (40); the inner step (31) is sealed at the outer circle of the pressurization combination of the multi-stage centrifugal progressive fan blade (27) by an air gap; the second threaded hole (39) corresponds to the mounting hole (22) of the fan base (3) and is mounted by a screw; the front bearing mounting hole (45) is used for mounting a front bearing (12); the reinforcing ribs (46) are used for reinforcing the mechanical strength of the fan shell (4).
The hand-held spacer-free centrifugal progressive blower of [0016], wherein: a wire casing (16) is arranged at the front end of the fan shell (4); the wire casing (16) is used for burying wires (19).
The hand-held spacer-free centrifugal progressive blower of [0016], wherein: a spare hole (15) is formed in the fan shell (4); the spare hole (15) is a spare scheme of a threaded hole III (47) and is a spare threaded hole for mounting the hot air pipe (40).
The hand-held spacer-free centrifugal progressive blower of [0011], wherein: the outer part of the fan shell (4) is respectively provided with an air outlet pipe (32), a radiating fin (42), a hole column (43) and a wire column (44); an inner step (31), a front bearing mounting hole (45), a reinforcing rib (46) and a second threaded hole (39) are respectively arranged in the fan shell (4); the inner step (31) is sealed at the outer circle of the pressurization combination of the multi-stage centrifugal progressive fan blade (27) by an air gap; the air outlet pipe (32) is arranged at the eccentric position of the front end of the fan shell (4); the radiating fins (42) are used for enhancing the mechanical strength of the fan shell (4) and improving the appearance; the hole column (43) is a threaded hole II (39); the wire column (44) is a passage for burying the electric wire (19) corresponding to the wire slot II (28) of the fan base (3); the second threaded hole (39) corresponds to the mounting hole (22) of the fan base (3) and is mounted by a screw; the front bearing mounting hole (45) is used for mounting a front bearing (12); the reinforcing ribs (46) are used for reinforcing the mechanical strength of the fan shell (4).
The hand-held spacer-free centrifugal progressive blower of [0011], wherein: the fan base (3) and the fan shell (4) adopt an aluminum die-casting forming process and are subjected to precise cutting processing.
The invention has the following beneficial effects as described above:
1. a spacer-free supercharging air duct formed by the supercharging combination of the multistage centrifugal type progressive fan blade (27), the fan shell (4) and the fan base (3) together can adopt a 0.2mm precise air gap through coaxial fine turning, the output air pressure is greater than 0.004MP, and the long-acting work of a high-power heating wire of 1200W or more is supported by high air pressure and high air volume.
2. The closed fan structure with independent wiring eliminates air pressure backflow and pressure loss caused by the gap of the wire grooves, and improves output efficiency.
3. The motor direct-connection front, middle and rear three-stage bearing installation design improves the installation precision and the coaxiality of each part and effectively reduces the polarization and the noise generated when the fan blades rotate at high speed.
4. The device has the advantages of compact and simple overall structure, convenience in disassembly, assembly and maintenance, energy conservation and high efficiency.
5. The fan base (3) and the fan shell (4) adopting the aluminum die-casting forming process have the advantages of stable mechanical property, good rigidity and light weight, and can adapt to severe working conditions of low temperature, high temperature and corrosivity.
Drawings
Fig. 1 is a schematic cross-sectional view of a first embodiment of the present invention.
Fig. 2 is a schematic configuration diagram of a one-piece plastic welding torch incorporating the first embodiment.
Fig. 3 is a schematic cross-sectional view of a second embodiment of the present invention.
Fig. 4 is a schematic view of the construction of a split plastic welding torch incorporating a second embodiment.
FIG. 5 is a structural feature view of the centrifugal progressive fan blade (27) of the present invention.
Fig. 6 is a structural characteristic diagram of the blower base (3) of the present invention.
Fig. 7 is a structural outline characteristic diagram of the first embodiment of the blower housing (4) of the present invention.
Fig. 8 is an internal configuration characteristic diagram of the first embodiment of the blower housing (4) of the present invention.
Fig. 9 is a characteristic view of the outer configuration of the second embodiment of the blower housing (4)) of the present invention.
Fig. 10 is an internal configuration characteristic diagram of a second embodiment of the blower housing (4) of the present invention.
Shown in the figure: 1. a motor rear end cover; 2. a motor stator; 3. a fan base; 4. a fan housing; 5. a rear bearing; 6. a motor rotor; 7. a middle bearing; 8. a rear gear of the first fan blade; 9. a rear gear of a second fan blade; 10. a heat insulating sheet; 11. a main shaft; 12. a front bearing; 13. a front baffle of a first fan blade; 14. a front baffle of a second fan blade; 15. a spare hole; 16. a wire slot; 17. a ceramic heating core; 18. a hand-held plastic housing; 19. an electric wire; 20. a spring; 21. a threaded hole; 22. mounting holes; 23. a long hole; 24. a middle bearing mounting hole; 25. multiple air inlet holes; 26. a step; 27. a centrifugal type progressive fan blade; 28. a second wire slot; 29. a wind-shielding terrace; 30. an outer circle; 31. an inner step; 32. an air outlet pipe; 33. a front gear; 34. an air inlet; 35. a rear gear; 36. a centrifugal blade; 37. a shaft hole; 38 shaft sleeves; 39. a second threaded hole; 40. a hot air pipe; 41. an air outlet; 42 a heat sink; 43. a pore column; 44. a wire post; 45. a front bearing mounting hole; 46. reinforcing ribs; 47. threaded hole III
Detailed Description
The invention will be further described with reference to the following detailed description of the invention in conjunction with the accompanying drawings:
as shown in fig. 1: is a schematic cross-sectional view of a first embodiment of the present invention.
In the figure: the front bearing (12), the pressurizing combination of the multi-stage centrifugal type progressive fan blade (27), the middle bearing (7), the motor rotor (6) and the rear bearing (5) are sequentially arranged on the main shaft (11) to form a core of the blower; the motor rear end cover (1), the motor stator (2), the fan base (3), the fan shell (4) and the handheld plastic shell (18) are sequentially and coaxially mounted to form a fan shell; the rear bearing (5) is arranged in the motor rear end cover (1); the middle bearing (7) is arranged in the fan base (3); the front bearing (12) is arranged in the fan shell (4); the fan base (3) is coaxially provided with a wind shielding step (29), and the inner circle of the wind shielding step is sealed on a front baffle (13) of the first fan blade by an air gap; an inner step (31) of the fan shell (4) is sealed in a front stop (14) of the second fan blade through an air gap; the fan base (3) and the fan shell (4) respectively form a pressurizing air duct without a spacer together with a front baffle (13) of the first fan blade, a rear baffle (8) of the first fan blade, a front baffle (14) of the second fan blade and a rear baffle (9) of the second fan blade; the hand-held plastic shell (18) is arranged at the rear end of the fan base (3); an air outlet (41) at the front end of the fan shell (4) is arranged as a ring-shaped air outlet.
As shown in fig. 2: a schematic view of a one-piece plastic welding torch incorporating the first embodiment is shown.
In the figure: the front bearing (12), the pressurizing combination of the multi-stage centrifugal type progressive fan blade (27), the middle bearing (7), the motor rotor (6) and the rear bearing (5) are sequentially arranged on the main shaft (11) to form a core of the blower; the motor rear end cover (1), the motor stator (2), the fan base (3), the fan shell (4) and the handheld plastic shell (18) are sequentially and coaxially mounted to form a fan shell; the rear bearing (5) is arranged in the motor rear end cover (1); the middle bearing (7) is arranged in the fan base (3); the front bearing (12) is arranged in the fan shell (4); the fan base (3) is coaxially provided with a wind shielding step (29), and the inner circle of the wind shielding step is sealed on a front baffle (13) of the first fan blade by an air gap; an inner step (31) of the fan shell (4) is sealed in a front stop (14) of the second fan blade through an air gap; the fan base (3) and the fan shell (4) respectively form a pressurizing air duct without a spacer together with a front baffle (13) of the first fan blade, a rear baffle (8) of the first fan blade, a front baffle (14) of the second fan blade and a rear baffle (9) of the second fan blade; the hand-held plastic shell (18) is arranged at the rear end of the fan base (3); an air outlet hole (41) at the front end of the fan shell (4) is arranged as a ring-shaped air outlet; the heat insulation sheet (10), the spring (20), the ceramic heating core (17) and the hot air pipe (40) are sequentially and coaxially arranged at the front end of the fan shell (4); the spring (20) presses the ceramic heating core (17) with elasticity and is fixed in the hot air pipe (40); the electric wire (19) sequentially penetrates through a second wire slot (28) of the fan base (3) and a wire column (44) of the fan shell (4), is embedded into the wire slot (16), and is pressed on the heat insulation sheet (10) and the hot air pipe (40); the plastic insulating layer of the wire (19) is deformed under pressure and seals the wire groove (16); two ends of the wire (19) are respectively connected with the ceramic heating core (17) and the power supply.
When the motor and the ceramic heating core (17) are electrified, the main shaft rotates at a high speed and drives the pressurizing combination of the multistage centrifugal type progressive fan blade (27) to do work, air flow enters from the tail end of the handheld type plastic shell (18), enters the air blower through the multiple air inlets (25) of the fan base (3), flows through the pressurizing combination of the fan base (3), the fan shell (4) and the multistage centrifugal type progressive fan blade (27) to jointly form a pressurizing air duct without a spacer, and finally high-temperature and high-pressure air flow is output by the front ends of the ceramic heating core (17) and the hot air pipe (40).
As shown in fig. 3: is a schematic cross-sectional view of a second embodiment of the present invention.
In the figure: the front bearing (12), the pressurizing combination of the multi-stage centrifugal type progressive fan blade (27), the middle bearing (7), the motor rotor (6) and the rear bearing (5) are sequentially arranged on the main shaft (11) to form a core of the blower; the motor rear end cover (1), the motor stator (2), the fan base (3), the fan shell (4) and the handheld plastic shell (18) are sequentially and coaxially mounted to form a blower shell; the rear bearing (5) is arranged in the motor rear end cover (1); the middle bearing (7) is arranged in the fan base (3); the front bearing (12) is arranged in the fan shell (4); an inner step (31) of the fan shell (4) is respectively sealed with a front baffle (13) of the first fan blade and a front baffle (14) of the second fan blade by air gaps; the fan base (3) and the fan shell (4) respectively form a pressurizing air duct without a spacer together with a front baffle (13) of the first fan blade, a rear baffle (8) of the first fan blade, a front baffle (14) of the second fan blade and a rear baffle (9) of the second fan blade; the hand-held plastic shell (18) is arranged at the rear end of the fan base (3); the air outlet pipe (32) is a tubular air outlet and is arranged at the eccentric position of the front end of the fan shell (4).
As shown in fig. 4: a schematic view of a split plastic welding torch incorporating the second embodiment.
In the figure: the front bearing (12), the pressurizing combination of the multi-stage centrifugal type progressive fan blade (27), the middle bearing (7), the motor rotor (6) and the rear bearing (5) are sequentially arranged on the main shaft (11) to form a core of the blower; the motor rear end cover (1), the motor stator (2), the fan base (3), the fan shell (4) and the handheld plastic shell (18) are sequentially and coaxially mounted to form a fan shell; the rear bearing (5) is arranged in the motor rear end cover (1); the middle bearing (7) is arranged in the fan base (3); the front bearing (12) is arranged in the fan shell (4); an inner step (31) of the fan shell (4) is respectively sealed with a front baffle (13) of the first fan blade and a front baffle (14) of the second fan blade by air gaps; the fan base (3) and the fan shell (4) respectively form a pressurizing air duct without a spacer together with a front baffle (13) of the first fan blade, a rear baffle (8) of the first fan blade, a front baffle (14) of the second fan blade and a rear baffle (9) of the second fan blade; the hand-held plastic shell (18) is arranged on the fan base (3); the electric wire (19) sequentially penetrates through a second wire slot (28) of the fan base (3) and a wire hole (44) of the fan shell (4), and two ends of the electric wire are connected with the split type heating tube and the power supply; the air outlet pipe (32) is a tubular air outlet and is arranged at the eccentric position of the front end of the fan shell (4) and is connected with the split type heating pipe through a rubber pipe.
When the motor and the split type heating pipe are electrified, the main shaft rotates at a high speed and drives the supercharging combination of the multi-stage centrifugal type progressive fan blades (27) to do work, airflow enters from the tail end of the handheld type plastic shell (18), enters the air blower through the multiple air inlets (25) of the fan base (3), and flows through the supercharging combination of the fan base (3), the fan shell (4) and the multi-stage centrifugal type progressive fan blades (27) to jointly form a supercharging air duct without a spacer; the pressurized airflow passes through the air outlet pipe (32) and the connected rubber pipe, and finally high-temperature and high-pressure airflow is output from the air outlet of the split heating pipe.
As shown in fig. 5: is a structural characteristic diagram of the centrifugal type progressive fan blade (27).
As shown in fig. 6: is a structural characteristic diagram of the fan base (3).
As shown in fig. 7: the outline and the structure characteristic diagram of the first embodiment of the fan shell (4) are shown.
As shown in fig. 8: the internal construction characteristic diagram of the first embodiment of the blower housing (4) is shown.
As shown in fig. 9: the appearance of the second embodiment of the blower shell (4) is characterized in a figure.
As shown in fig. 10: the internal construction characteristic diagram of the second embodiment of the blower housing (4) is shown.
Finally, the following description is provided: the scale, dimensions and clearances shown in the above embodiments are for the sake of simplicity and illustration only, and are not the only actual representation of the right, as: the fan base (3), the fan shell (4), the centrifugal type progressive fan blade (27) have various reasonable deformations, the concrete mode that the centrifugal type progressive fan blade (27) is fixed on the main shaft (11), a switch, a circuit board, a power wire, a rubber tube, a split type hot air tube, a temperature controller and the like are not the core content of the invention, so the description of the attached drawings is omitted.
Claims (10)
1. Hand-held no spacer centrifugal upgrades supercharging blower mainly comprises air-blower core, air-blower casing, control circuit board and electric wire (19), its characterized in that: the blower core is composed of a front bearing (12), a pressurizing combination of a multi-stage centrifugal progressive fan blade (27), a middle bearing (7), a motor rotor (6) and a rear bearing (5) which are sequentially arranged on a main shaft (11); the pressurizing combination of the multi-stage centrifugal type progressive fan blade (27) is formed by coaxially mounting a plurality of centrifugal type progressive fan blades (27); the centrifugal type progressive fan blade (27) is a whole and is respectively provided with a front baffle (33), an air inlet (34), a rear baffle (35), a centrifugal type blade (36), an axle hole (37) and an axle sleeve (38); the outer diameter of the front stop (33) is larger than that of the rear stop (35), and an air inlet (34) is formed; the rear gear (35) is connected with the shaft sleeve (38); the centrifugal blades (36) are respectively connected with a front stop (33), a rear stop (35) and a shaft sleeve (38); the shaft hole (37) is adapted to the main shaft (11); the blower shell is formed by coaxially mounting a motor rear end cover (1), a motor stator (2), a blower base (3), a blower shell (4) and a handheld plastic shell (18); the rear bearing (5) is arranged in the motor rear end cover (1); the middle bearing (7) is arranged in the fan base (3); the front bearing (12) is arranged in the fan shell (4); the motor rear end cover (1) and the motor stator (2) are sequentially connected and installed on the fan base (3): the hand-held plastic shell (18) is arranged on the fan base (3); the combination of the blower core and the blower shell jointly forms a handheld spacer-free centrifugal supercharging blower.
2. The handheld diaphragm-less centrifugal stage booster blower of claim 1, wherein: the pressurizing combination of the multi-stage centrifugal type progressive fan blade (27) is arranged behind the main shaft, and a coaxial finish turning process is adopted.
3. The handheld diaphragm-less centrifugal stage booster blower of claim 1, wherein: the fan base (3) is coaxially provided with a wind shielding step (29); the inner circle of the wind shielding step (29) is sealed in a front baffle (13) of a first fan blade of a pressurizing combination of a multi-stage centrifugal type progressive fan blade (27) through an air gap; the front baffle (14) of the second fan blade of the supercharging combination of the multi-stage centrifugal progressive fan blade (27) is sealed in an inner stage (31) of the fan shell (4) by an air gap; a blower shell composed of the blower base (3) and the blower shell (4) and a front baffle (13) of a first fan blade, a rear baffle (8) of the first fan blade, a front baffle (14) of a second fan blade and a rear baffle (9) of the second fan blade which are combined in a pressurizing mode through multistage centrifugal type progressive fan blades (27) jointly form a pressurizing air duct without a spacer.
4. The handheld diaphragm-less centrifugal stage booster blower of claim 1, wherein: the fan base (3) and the fan shell (4) are coaxially and hermetically mounted; an inner step (31) of the fan shell (4) is respectively sealed with a front baffle (13) of a first fan blade and a front baffle (14) of a second fan blade which are combined by the pressurization of the multistage centrifugal progressive fan blades (27) through air gaps; a blower shell composed of the blower base (3) and the blower shell (4) and a front baffle (13) of a first fan blade, a rear baffle (8) of the first fan blade, a front baffle (14) of a second fan blade and a rear baffle (9) of the second fan blade which are combined in a pressurizing mode through multistage centrifugal type progressive fan blades (27) jointly form a pressurizing air duct without a spacer.
5. The handheld diaphragm-less centrifugal stage booster blower of claim 1, wherein: the fan base (3) is respectively provided with a threaded hole (21), a mounting hole (22), a long hole (23), a middle bearing mounting hole (24), a multiple air inlet hole (25), a step (26) and a wire slot II (28); the threaded hole (21) is a screw hole for fixing the handheld plastic shell (18); the mounting hole (22) is a screw hole for fixing the fan shell (4); the long hole (23) is a screw hole for fixing the motor stator (2); the middle bearing mounting hole (24) is used for mounting a middle bearing (7); the multiple air inlet holes (25) are coaxial air inlet holes; the step (26) is adapted to the outer circle of the motor stator (2); the second wire groove (28) is a passage of the electric wire (19).
6. The handheld diaphragm-less centrifugal stage booster blower of claim 1, wherein: the outer part of the fan shell (4) is respectively provided with an air outlet hole (41), a radiating fin (42), a hole column (43), a wire column (44) and a threaded hole III (47); an inner step (31), a threaded hole II (39), a front bearing mounting hole (45) and a reinforcing rib (46) are respectively arranged in the fan shell (4); the air outlet hole (41) is a ring-shaped air outlet and is arranged at the concentric position of the front end of the fan shell (4); the radiating fins (42) are used for enhancing the mechanical strength of the fan shell (4) and improving the appearance; the hole column (43) is a threaded hole II (39); the wire column (44) is a passage for burying the electric wire (19) corresponding to the wire slot II (28) of the fan base (3); the threaded hole III (47) is used for installing a threaded hole of the hot air pipe (40); the inner step (31) is sealed at the outer circle of the pressurization combination of the multi-stage centrifugal progressive fan blade (27) by an air gap; the second threaded hole (39) corresponds to the mounting hole (22) of the fan base (3) and is mounted by a screw; the front bearing mounting hole (45) is used for mounting a front bearing (12); the reinforcing ribs (46) are used for reinforcing the mechanical strength of the fan shell (4).
7. The handheld diaphragm-less centrifugal stage booster blower of claim 6, wherein: a wire casing (16) is arranged at the front end of the fan shell (4); the wire casing (16) is used for burying wires (19).
8. The handheld diaphragm-less centrifugal stage booster blower of claim 6, wherein: a spare hole (15) is formed in the fan shell (4); the spare hole (15) is a spare scheme of a threaded hole III (47) and is a spare threaded hole for mounting the hot air pipe (40).
9. The handheld diaphragm-less centrifugal stage booster blower of claim 1, wherein: the outer part of the fan shell (4) is respectively provided with an air outlet pipe (32), a radiating fin (42), a hole column (43) and a wire column (44); an inner step (31), a front bearing mounting hole (45), a reinforcing rib (46) and a second threaded hole (39) are respectively arranged in the fan shell (4); the inner step (31) is sealed at the outer circle of the pressurization combination of the multi-stage centrifugal progressive fan blade (27) by an air gap; the air outlet pipe (32) is arranged at the eccentric position of the front end of the fan shell (4); the radiating fins (42) are used for enhancing the mechanical strength of the fan shell (4) and improving the appearance; the hole column (43) is a threaded hole II (39); the wire column (44) is a passage for burying the electric wire (19) corresponding to the wire slot II (28) of the fan base (3); the second threaded hole (39) corresponds to the mounting hole (22) of the fan base (3) and is mounted by a screw; the front bearing mounting hole (45) is used for mounting a front bearing (12); the reinforcing ribs (46) are used for reinforcing the mechanical strength of the fan shell (4).
10. The handheld diaphragm-less centrifugal stage booster blower of claim 1, wherein: the fan base (3) and the fan shell (4) adopt an aluminum die-casting forming process and are subjected to precise cutting processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010168309.7A CN111156176A (en) | 2020-03-09 | 2020-03-09 | Hand-held spacer-free centrifugal type progressive supercharging blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010168309.7A CN111156176A (en) | 2020-03-09 | 2020-03-09 | Hand-held spacer-free centrifugal type progressive supercharging blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111156176A true CN111156176A (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010168309.7A Pending CN111156176A (en) | 2020-03-09 | 2020-03-09 | Hand-held spacer-free centrifugal type progressive supercharging blower |
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| CN (1) | CN111156176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048077A (en) * | 2021-03-29 | 2021-06-29 | 上海诺特飞博燃烧设备有限公司 | Formula of making an uproar air supply arrangement falls |
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| JPH06294393A (en) * | 1994-03-11 | 1994-10-21 | Sanyo Electric Co Ltd | Blower |
| CN201013629Y (en) * | 2007-02-14 | 2008-01-30 | 佛山市顺德区新生源电器有限公司 | Double air duct centrifugal blower fan |
| EP2000675A2 (en) * | 2007-06-05 | 2008-12-10 | ResMed Limited | Blower With Bearing Tube |
| CN102459915A (en) * | 2009-05-08 | 2012-05-16 | 诺沃皮尼奥内有限公司 | Composite shroud and methods for attaching the shroud to plural blades |
| CN104154009A (en) * | 2014-08-13 | 2014-11-19 | 深圳市锐钜科技有限公司 | Multistage supercharging suction fan with centrifugal wind wheels |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294393A (en) * | 1994-03-11 | 1994-10-21 | Sanyo Electric Co Ltd | Blower |
| CN201013629Y (en) * | 2007-02-14 | 2008-01-30 | 佛山市顺德区新生源电器有限公司 | Double air duct centrifugal blower fan |
| EP2000675A2 (en) * | 2007-06-05 | 2008-12-10 | ResMed Limited | Blower With Bearing Tube |
| CN102459915A (en) * | 2009-05-08 | 2012-05-16 | 诺沃皮尼奥内有限公司 | Composite shroud and methods for attaching the shroud to plural blades |
| CN104154009A (en) * | 2014-08-13 | 2014-11-19 | 深圳市锐钜科技有限公司 | Multistage supercharging suction fan with centrifugal wind wheels |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113048077A (en) * | 2021-03-29 | 2021-06-29 | 上海诺特飞博燃烧设备有限公司 | Formula of making an uproar air supply arrangement falls |
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