CN113217434A - Explosion-proof fire-fighting fan - Google Patents
Explosion-proof fire-fighting fan Download PDFInfo
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- CN113217434A CN113217434A CN202110650100.9A CN202110650100A CN113217434A CN 113217434 A CN113217434 A CN 113217434A CN 202110650100 A CN202110650100 A CN 202110650100A CN 113217434 A CN113217434 A CN 113217434A
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- impeller
- shaft
- connecting sleeve
- impeller shaft
- sleeve
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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
- 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
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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
- 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
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an explosion-proof fire-fighting fan, which comprises a fan barrel, wherein a mounting rack is arranged in the fan barrel, an impeller shaft and a driving motor are arranged on the mounting rack, an impeller is arranged at one end of the impeller shaft, a connecting seat is detachably arranged on an output shaft of the driving motor, a connecting shaft is arranged at one side of the connecting seat, a connecting sleeve is arranged at one end of the impeller shaft, a strip-shaped hole for the connecting shaft to penetrate is arranged on the side wall of the connecting sleeve, the strip-shaped hole is arranged along the central line direction of the connecting sleeve, and a radial buffer component for providing radial elasticity for the connecting sleeve is arranged on the connecting seat; one end of the impeller shaft, which is far away from the impeller, is in plug fit with the connecting sleeve, a plurality of groups of connecting assemblies are arranged between the connecting sleeve and the impeller shaft, and the connecting sleeve is also provided with an axial buffer assembly for providing axial elasticity for the impeller shaft. The invention greatly reduces the jumping angle between the impeller shaft and the impeller in the rotating process, thereby ensuring that the impeller is not easy to contact with the inner wall of the fan cylinder to generate sparks and improving the safety factor.
Description
Technical Field
The invention relates to the technical field of fire-fighting fans, in particular to an explosion-proof fire-fighting fan.
Background
The fan is a machine which converts the rotating mechanical energy into gas pressure energy and kinetic energy and conveys the gas out. The fan mainly divides into two kinds of types axial fan and centrifugal fan, because axial fan simple structure, simple to operate, generally applies to each field of industrial production.
In the related art, the axial flow fan mainly comprises a fan cylinder, a driving motor, an impeller shaft and an impeller connected with the impeller shaft, wherein a mounting frame is installed in the fan cylinder, the driving motor is fixedly installed on the mounting frame, the impeller shaft is rotatably installed on the mounting frame through a rotating shaft, and an output shaft of the driving motor is directly connected with the impeller shaft. When the axial flow fan is used, the driving motor drives the impeller shaft to rotate, so that the impeller is driven to rotate.
However, because there is radial run-out phenomenon in the process of rotation of the driving motor, the impeller shaft is caused to run-out along with the run-out of the output shaft of the driving motor, after long-time use, looseness occurs between the impeller shaft and the bearing and between the bearing and the mounting frame, the run-out of the impeller shaft is caused to be more serious, when the impeller shaft runs-out, the impeller is easy to deviate, when serious, the impeller can be caused to contact with the inner wall of the fan cylinder to generate sparks, and at the moment, if the dust content in the air is higher, or when combustible gas is mixed in the air, fire and explosion are easy to cause, and great potential safety hazards are caused.
Disclosure of Invention
In order to improve current fan long-time use back, driving motor's output shaft takes place the runout and makes the impeller shaft not hard up, and then makes the impeller take place the phenomenon of beating, this application provides an explosion-proof fire control fan.
The application provides an explosion-proof fire control fan adopts following technical scheme:
an explosion-proof fire-fighting fan comprises a fan barrel, wherein a mounting frame is arranged in the fan barrel, an impeller shaft is rotatably arranged on the mounting frame, an impeller is arranged at one end of the impeller shaft, a driving motor used for driving the impeller shaft to rotate is arranged on the mounting frame, a connecting seat is detachably arranged on an output shaft of the driving motor, a connecting shaft is arranged on one side, away from the driving motor, of the connecting seat, a connecting sleeve is arranged at one end, away from the impeller, of the impeller shaft, a strip-shaped hole for the connecting shaft to penetrate through is formed in the side wall of the connecting sleeve, the strip-shaped hole penetrates through the two sides of the connecting sleeve and is formed in the direction of the central line of the connecting sleeve, and a radial buffer assembly used for providing radial elasticity for the connecting sleeve is arranged on the connecting seat; one end, far away from the impeller, of the impeller shaft is in plug-in fit with the connecting sleeve, a plurality of groups of connecting assemblies are arranged between the connecting sleeve and the impeller shaft, and an axial buffering assembly used for providing axial elasticity for the impeller shaft is further arranged on the connecting sleeve.
By adopting the technical scheme, when the fan is used, the driving motor drives the connecting seat to rotate, in the rotating process of the connecting seat, the connecting shaft synchronously rotates along with the rotation of the connecting seat, the connecting sleeve is driven to synchronously rotate by the rotation of the connecting shaft, when the output shaft of the driving motor radially jumps, the output shaft of the driving motor pulls the connecting seat to do radial motion, and when the connecting seat radially moves, the connecting shaft is driven to move along with the connecting shaft, and because the strip-shaped hole is formed along the length direction of the sleeve, a movable space is formed between the connecting shaft and the hole wall of the strip-shaped hole, so that the connecting shaft can radially move relative to the connecting sleeve, the angle formed between the axis of the connecting shaft and the central line of the connecting sleeve can be changed, and when the output shaft of the driving motor radially moves to drive the connecting seat to radially move, the radial buffer component plays a role in buffering for the connecting sleeve, therefore, the radial motion acting force acting on the connecting sleeve is reduced, the radial acting force acting on the impeller shaft is greatly reduced, the impeller shaft is difficult to loosen, the impeller is difficult to deviate in the use process of the fan, the rotation stability of the impeller shaft and the impeller is improved, the jumping angle of the impeller is greatly reduced, the impeller is difficult to contact with the inner wall of the fan cylinder to generate sparks, and the safety factor is improved.
Preferably, the number of the radial buffer assemblies is two, and the two radial buffer assemblies are symmetrically distributed on two sides of the connecting sleeve.
Through adopting above-mentioned technical scheme, add two sets of elastic buffer subassembly and make the connecting seat take place when radial runout, the elasticity of effect on the adapter sleeve is more even to make the atress of adapter sleeve more balanced.
Preferably, the radial buffer component including slide connect in the elastic block of connecting axle and the cover is located the first spring of connecting axle, the one end of first spring connect in the connecting seat, the other end connect in the elastic block, one side butt of elastic block in the lateral wall of adapter sleeve.
Through adopting above-mentioned technical scheme, when the connecting seat takes place to beat and drives the connecting axle when beating, two first spring connecting seats produce the elasticity effect to make partial radial jump power offset, thereby reduce radial jump power transmission to adapter sleeve, reduce radial jump power from this and act on the impeller shaft, make the rotation of impeller shaft more stable.
Preferably, the connecting assemblies are three groups, and the three groups of connecting assemblies are uniformly distributed along the circumferential direction of the connecting sleeve.
Through adopting above-mentioned technical scheme, three group's coupling assembling evenly distributed are on the week side of adapter sleeve to make the connection between adapter sleeve and the impeller shaft more stable, and the impeller shaft receives the turning force that comes from the adapter sleeve more balanced, stable.
Preferably, the connecting assembly comprises a first connecting rod hinged to a side wall of the connecting sleeve and a second connecting rod hinged to a side wall of the impeller shaft, and the first connecting rod and the second connecting rod are hinged to each other.
By adopting the technical scheme, the connecting sleeve can axially move relative to the impeller shaft, so that when the connecting sleeve axially moves, the connecting sleeve and the impeller shaft are relatively independent, the axial moving force acting on the impeller shaft is reduced, and the rotation of the impeller shaft is more stable.
Preferably, the side wall of the impeller shaft is provided with a sliding groove, the sliding groove is formed along the axial length direction of the impeller shaft, and the inner wall of the connecting sleeve is provided with a convex point which is in sliding fit with the sliding groove.
By adopting the technical scheme, the connecting sleeve can slide relative to the impeller shaft in the axial length direction of the impeller shaft, and meanwhile can be relatively fixed with the impeller shaft in the circumferential direction, so that the driving motor can drive the impeller shaft to rotate when driving the connecting sleeve to rotate.
Preferably, the axial buffer component comprises a second spring arranged in the connecting sleeve, one end of the second spring is connected to the inner wall of the sleeve, the other end of the second spring is connected with a butting block, and a butting ring in butting fit with the butting block is arranged at one end, inserted into the connecting sleeve, of the impeller shaft.
Through adopting above-mentioned technical scheme, the cooperation of butt piece and butt ring to increase the area of contact between second spring and the impeller shaft, when making driving motor's output shaft take place axial displacement and promote the adapter sleeve to the one side removal of impeller, the atress of impeller shaft is more even.
Preferably, the impeller shaft is sleeved with a threaded sleeve for plugging one end of the connecting sleeve, which is far away from the connecting shaft, the threaded sleeve is connected to the impeller shaft in a sliding manner, the threaded sleeve can rotate relative to the impeller shaft, and the side wall of the connecting sleeve is provided with external threads in threaded fit with the threaded sleeve.
By adopting the technical scheme, after the threaded sleeve is in threaded connection with the connecting sleeve, the threaded sleeve plugs the opening at the end part of the connecting sleeve and is matched with the abutting ring on the impeller shaft, so that the impeller shaft is not easy to separate from the connecting sleeve.
Preferably, the blower barrel is made of plastic steel materials, the impeller is an aluminum impeller, and the motor is an explosion-proof motor.
By adopting the technical scheme, sparks are not easy to generate when the fan sleeve and the aluminum impeller of the plastic steel are in mutual contact friction, so that the safety is effectively improved, the plastic steel has better corrosion resistance, the aluminum material is lighter, the corrosion resistance of the fan is effectively improved, and the weight of the fan is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the output shaft of the driving motor is in radial run-out, a movable space is formed between the connecting shaft and the wall of the strip-shaped hole, so that the connecting shaft can move radially relative to the connecting sleeve, and meanwhile, the radial buffer assembly has a buffer effect on the connecting sleeve, so that the radial movement acting force acting on the connecting sleeve is reduced, the radial acting force acting on the impeller shaft is greatly reduced, the impeller shaft is not easy to loosen, the impeller is not easy to contact with the inner wall of the fan cylinder to generate sparks, and the safety coefficient is improved;
2. when the output shaft of the driving motor moves axially to push the connecting sleeve to move towards one side of the impeller, the elastic force of the second spring is utilized to counteract part of the axial jumping force, so that the acting force acting on the impeller shaft is reduced, and the influence of the axial jumping force on the impeller shaft is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is another schematic view of FIG. 1;
FIG. 3 is a partial cross-sectional view of the blower barrel in this embodiment;
FIG. 4 is a schematic view showing a connection structure between an output shaft of the driving motor and the impeller shaft in the present embodiment;
FIG. 5 is an enlarged view of portion A of FIG. 4;
fig. 6 is a partial cross-sectional view of the impeller shaft and the coupling sleeve in this embodiment.
Description of reference numerals: 1. a blower barrel; 2. a mounting frame; 3. an impeller shaft; 31. a chute; 32. a butting ring; 4. an impeller seat; 5. an impeller; 6. a drive motor; 61. an output shaft; 7. a connecting seat; 71. a sleeve; 72. a connecting shaft; 8. connecting sleeves; 81. a strip-shaped hole; 82. salient points; 9. a first spring; 10. an elastic block; 11. a first hinge mount; 12. a first link; 13. a second hinge mount; 14. a second link; 15. a second spring; 16. a butting block; 17. and (4) a threaded sleeve.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
An explosion-proof fire-fighting fan, refer to fig. 1, comprises a cylindrical fan cylinder 1, wherein the fan cylinder 1 is made of plastic steel material. Referring to fig. 2 and 3, one end of the blower cylinder 1 is an air inlet end, and the other end is an air outlet end. Two cross-shaped mounting frames 2 are installed in the fan barrel 1, and the two mounting frames 2 are welded at the air inlet end and the air outlet end of the fan barrel 1 respectively.
Referring to fig. 3, an impeller shaft 3 is connected between the two mounting frames 2, the impeller shaft 3 extends along the central line direction of the blower barrel 1, and two ends of the impeller shaft 3 are rotatably connected with the two mounting frames 2 through bearings respectively. In this embodiment, the bearing is fixed at the center of the mounting frame 2, the outer ring of the bearing is fixedly connected with the mounting frame 2, and the impeller shaft 3 passes through the inner ring of the bearing and is fixedly connected with the inner ring of the bearing.
Referring to fig. 3, an impeller seat 4 is sleeved at one end of the impeller shaft 3 close to the air outlet, and the impeller seat 4 and the impeller shaft 3 are fixed through bolts. One side of the impeller seat 4 is fixedly connected with an impeller 5, the impeller 5 is made of aluminum materials, and the impeller 5 is welded with the impeller seat 4.
A driving motor 6 is installed on the installation frame 2 close to the inlet of the fan cylinder 1, the driving motor 6 is an explosion-proof motor, and the driving motor 6 is fixed on the installation frame 2 through bolts.
Referring to fig. 4 and 5, the output shaft 61 of the driving motor 6 is detachably connected with the connecting base 7, and the connecting base 7 and the output shaft 61 of the driving motor 6 are fixed by bolts. In this embodiment, connecting seat 7 is the setting of U type, one side of connecting seat 7 is the opening side, the opposite side is the closing side, the closing side welded connection of connecting seat 7 has sleeve 71, sleeve 71 cover is established outside driving motor 6's output shaft 61, and sleeve 71's lateral wall set up threaded hole, driving motor 6's output shaft 61 sets up the perforation that supplies the bolt to wear to establish, thereby the bolt penetrates the perforation back from the screw hole, thereby can realize connecting seat 7 and driving motor 6's output shaft 61 between being connected fixedly through screwing up the bolt.
Referring to fig. 4 and 5, a connecting sleeve 8 is arranged on the opening side of the connecting base 7, and the connecting sleeve 8 is connected with one end of the impeller shaft 3 far away from the impeller 5. In this embodiment, one end of the connecting sleeve 8 far away from the impeller shaft 3 is movably connected with the connecting seat 7. Specifically, the opening side of the connecting base 7 is fixedly provided with a connecting shaft 72, and two ends of the connecting shaft 72 are fixedly connected with two opposite side walls of the connecting base 7 respectively. The lateral wall of adapter sleeve 8 is seted up and is supplied the strip hole 81 that connecting axle 72 wore through to establish, and strip hole 81 runs through the both sides of adapter sleeve 8. In this embodiment, the strip-shaped hole 81 is formed along the central line direction of the connecting sleeve 8, so that after the connecting shaft 72 passes through the strip-shaped hole 81, the connecting sleeve 8 can move relative to the connecting shaft 72, and when the driving motor 6 drives the connecting base 7 to rotate, the connecting sleeve 8 can also rotate synchronously along with the rotation of the connecting base 7.
In addition, referring to fig. 4 and 5, a radial buffer assembly for providing radial elastic force to the connection sleeve 8 is further provided on the connection seat 7. In this embodiment, the radial buffer components are two sets, and two sets of radial buffer components are symmetrically distributed on two sides of the connecting sleeve 8, so that when the output shaft 61 of the driving motor 6 generates radial runout to drive the connecting sleeve 8 to run out radially, the radial buffer components play a role in buffering the connecting sleeve 8, and thus the radial runout power acting on the connecting sleeve 8 is reduced.
Specifically, referring to fig. 4 and 5, the radial buffering assembly includes a first spring 9 sleeved outside the connecting shaft 72, one end of the first spring 9 is connected to the inner side of the connecting seat 7, and the other end of the first spring 9 is connected to an elastic block 10 for abutting against the side wall of the connecting sleeve 8. In this embodiment, the elastic block 10 is a circular elastic rubber pad, the elastic block 10 is sleeved outside the connecting shaft 72, and the elastic block 10 can slide relative to the connecting shaft 72.
When the connecting seat 7 is driven to rotate by the driving motor 6, the output shaft 61 of the driving motor 6 generates radial jumping force on the connecting seat 7, the connecting shaft 72 jumps along with the radial jumping of the connecting seat 7, and the connecting sleeve 8 is matched with the strip-shaped hole 81 through the connecting shaft 72, so that when the connecting shaft 72 jumps radially, the connecting sleeve 8 can move relative to the connecting shaft 72, and the radial jumping power acting on the connecting sleeve 8 is reduced. And when the connecting base 7 drives the connecting sleeve 8 to run out radially, the angle of an included angle formed by the axis of the connecting shaft 72 and the central line of the connecting sleeve 8 is changed, so that the first spring 9 is compressed, part of radial run-out power is offset by using the elastic force of the first spring 9, the radial run-out force is reduced and transmitted to the connecting sleeve 8, and further the radial run-out force is reduced and acts on the impeller shaft 3, so that the connecting sleeve 8 can stably rotate, and the impeller shaft 3 and the impeller 5 stably rotate.
The connecting sleeve 8 is detachably connected with the impeller shaft 3, one end, far away from the impeller 5, of the impeller shaft 3 is inserted into the connecting sleeve 8, three groups of connecting assemblies are connected between the connecting sleeve 8 and the impeller shaft 3, and the three groups of connecting assemblies are distributed at equal intervals along the circumferential direction of the connecting sleeve 8.
Specifically, referring to fig. 5 and 6, the connecting assembly includes a first hinge base 11 fixed to a sidewall of the connecting sleeve 8 by bolts and a first link 12 hinged to the first hinge base 11, and the first link 12 is tiltable to one side of the impeller 5 relative to the first hinge base 11. The connecting assembly further comprises a second hinge base 13 and a second connecting rod 14 hinged to the second hinge base 13 through bolts, and the second connecting rod 14 can turn towards one side of the first hinge base 11 relative to the second hinge base 13. In this embodiment, one end of the second link 14 away from the second hinge seat 13 is hinged to one end of the first link 12 away from the first hinge seat 11, so that when the connecting sleeve 8 rotates, the impeller shaft 3 can be driven to rotate, and meanwhile, the sleeve 71 can also slide relative to the impeller shaft 3, so that when the connecting sleeve 8 receives axial jumping power from the connecting seat 7, the connecting sleeve 8 and the impeller shaft 3 are relatively independent in the axial direction of the impeller shaft 3, thereby reducing the influence of the axial jumping power on the impeller shaft 3.
Referring to fig. 5 and 6, the side wall of the impeller shaft 3 is provided with a slide groove 31, and the slide groove 31 is provided along the axial length direction of the impeller shaft 3. The inner wall of the connecting sleeve 8 is fixed with a convex point 82 which is matched with the sliding groove 31 in a sliding manner, so that the connecting sleeve 8 is more stable when being subjected to axial jumping power and slides along the axial length direction of the impeller shaft 3, and meanwhile, the connecting sleeve 8 and the impeller shaft 3 can be kept relatively fixed in the circumferential direction.
An axial buffer component for providing circumferential elasticity for the impeller shaft 3 is also arranged in the connecting sleeve 8.
In particular, with reference to fig. 5 and 6, the axial damping assembly comprises a second spring 15 arranged inside the connecting sleeve 8, in this embodiment, one end of the connecting sleeve 8 close to the impeller shaft 3 is open and the other end is closed. One end of the second spring 15 is connected to the closed end of the connecting sleeve 8, the other end of the second spring 15 is connected with the abutting block 16, the abutting ring 32 is integrally formed at one end of the impeller 5 inserted into the connecting sleeve 8, and the abutting ring 32 is in abutting fit with the abutting sleeve, so that when the connecting sleeve 8 is subjected to axial jumping force, part of the axial jumping force is offset by the elastic force of the second spring 15, the axial jumping force acting on the impeller shaft 3 is reduced, and the rotation of the impeller shaft 3 is more stable.
In addition, referring to fig. 5 and 6, the impeller shaft 3 is further sleeved with a threaded sleeve 17, the threaded sleeve 17 can rotate relative to the impeller shaft 3, and the threaded sleeve 17 can slide along the length direction of the impeller shaft 3. In this embodiment, the inner diameter of the threaded sleeve 17 is equal to the outer diameter of the connecting sleeve 8, so that the threaded sleeve 17 can be sleeved outside the connecting sleeve 8, thereby sealing the opening end of the connecting sleeve 8. The side wall of the connecting sleeve 8 is provided with an external thread which is in threaded fit with the thread of the threaded sleeve 17, so that the threaded sleeve 17 is conveniently fixedly connected to the connecting sleeve 8, thereby plugging the open end of the connecting sleeve 8 and preventing the impeller shaft 3 from being separated from the connecting sleeve 8.
The implementation principle of the application is as follows: when the fan is used, the driving motor 6 drives the connecting seat 7 to rotate, in the rotating process of the connecting seat 7, the connecting shaft 72 synchronously rotates along with the rotation of the connecting seat 7, the connecting sleeve 8 is driven to synchronously rotate by the rotation of the connecting shaft 72, when the output shaft 61 of the driving motor 6 radially jumps, the output shaft 61 of the driving motor 6 pulls the connecting seat 7 to radially move, and when the connecting seat 7 radially moves, the connecting shaft 72 is driven to move along with the connecting shaft, and because the strip-shaped hole 81 is formed along the length direction of the sleeve 71, a movable space is formed between the connecting shaft 72 and the hole wall of the strip-shaped hole 81, so that the connecting shaft 72 can radially move relative to the connecting sleeve 8, an angle formed between the axis of the connecting shaft 72 and the central line of the connecting sleeve 8 can be changed, thereby the first spring 9 is compressed, and part of the radial jumping power is counteracted through the, play the effect of buffering to adapter sleeve 8 from this, thereby reduce the radial motion effort of effect on adapter sleeve 8, the radial effort of effect at impeller shaft 3 has been reduced greatly, make impeller shaft 3 difficult the emergence not hard up, thereby make the fan in the in-process of using, impeller 5 is difficult for taking place the off normal, the stability of rotation of impeller shaft 3 and impeller 5 has been improved from this, and impeller 5's the angle of beating has been reduced greatly, thereby make impeller 5 be difficult for producing the spark with the inner wall contact of fan barrel 1, safety factor is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides an explosion-proof fire control fan, includes fan barrel (1), be provided with mounting bracket (2) in fan barrel (1), it is provided with impeller shaft (3) to rotate on mounting bracket (2), the one end of impeller shaft (3) is provided with impeller (5), be provided with on mounting bracket (2) and be used for driving impeller shaft (3) pivoted driving motor (6), its characterized in that: the output shaft (61) of the driving motor (6) is detachably provided with a connecting seat (7), one side, far away from the driving motor (6), of the connecting seat (7) is provided with a connecting shaft (72), one end, far away from the impeller (5), of the impeller shaft (3) is provided with a connecting sleeve (8), the side wall of the connecting sleeve (8) is provided with a strip-shaped hole (81) for the connecting shaft (72) to penetrate through, the strip-shaped hole (81) penetrates through two sides of the connecting sleeve (8), the strip-shaped hole (81) is formed along the direction of the central line of the connecting sleeve (8), and the connecting seat (7) is provided with a radial buffering assembly for providing radial elasticity for the connecting sleeve (8); one end, far away from the impeller (5), of the impeller shaft (3) is in plug-in fit with the connecting sleeve (8), a plurality of groups of connecting assemblies are arranged between the connecting sleeve (8) and the impeller shaft (3), and an axial buffering assembly used for providing axial elasticity for the impeller shaft (3) is further arranged on the connecting sleeve (8).
2. The explosion-proof fire fighting fan of claim 1, characterized in that: the number of the radial buffer assemblies is two, and the two radial buffer assemblies are symmetrically distributed on two sides of the connecting sleeve (8).
3. The explosion-proof fire fighting fan of claim 2, characterized in that: radial buffering subassembly including slide connect in elastic block (10) and the cover of connecting axle (72) are located first spring (9) of connecting axle (72), the one end of first spring (9) connect in connecting seat (7), the other end connect in elastic block (10), one side butt of elastic block (10) in the lateral wall of adapter sleeve (8).
4. The explosion-proof fire fighting fan of claim 1, characterized in that: the connecting assemblies are three groups, and the three groups of connecting assemblies are uniformly distributed along the circumferential direction of the connecting sleeve (8).
5. The explosion-proof fire fighting fan of claim 4, characterized in that: the connecting assembly comprises a first connecting rod (12) hinged to the side wall of the connecting sleeve (8) and a second connecting rod (14) hinged to the side wall of the impeller shaft (3), and the first connecting rod (12) and the second connecting rod (14) are hinged to each other.
6. The explosion-proof fire fighting fan of claim 1, characterized in that: the side wall of the impeller shaft (3) is provided with a sliding groove (31), the sliding groove (31) is formed along the axial length direction of the impeller shaft (3), and the inner wall of the connecting sleeve (8) is provided with a convex point (82) in sliding fit with the sliding groove (31).
7. The explosion-proof fire fighting fan of claim 1, characterized in that: the axial buffer component comprises a second spring (15) arranged in the connecting sleeve (8), one end of the second spring (15) is connected to the inner wall of the connecting sleeve (8), the other end of the second spring (15) is connected with a butt joint block (16), the impeller shaft (3) is inserted into one end of the connecting sleeve (8) and is provided with a butt joint ring (32) matched with the butt joint block (16) in a butt joint mode.
8. The explosion-proof fire fighting fan of claim 1, characterized in that: the impeller shaft (3) overcoat is equipped with and is used for the shutoff thread bush (17) of the one end of connecting axle (72) is kept away from in adapter sleeve (8), thread bush (17) slide connect in impeller shaft (3), just thread bush (17) can rotate relative to impeller shaft (3), the lateral wall of adapter sleeve (8) is provided with the screw-thread fit in the external screw thread of thread bush (17).
9. The explosion-proof fire fighting fan of claim 1, characterized in that: the fan cylinder body (1) is made of plastic steel materials, the impeller (5) is an aluminum impeller (5), and the driving motor (6) is an explosion-proof motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110650100.9A CN113217434B (en) | 2021-06-10 | 2021-06-10 | Explosion-proof fire-fighting fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110650100.9A CN113217434B (en) | 2021-06-10 | 2021-06-10 | Explosion-proof fire-fighting fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113217434A true CN113217434A (en) | 2021-08-06 |
| CN113217434B CN113217434B (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110650100.9A Active CN113217434B (en) | 2021-06-10 | 2021-06-10 | Explosion-proof fire-fighting fan |
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| CN109274211A (en) * | 2018-10-10 | 2019-01-25 | 浙江东方机电有限公司 | A kind of adjustable blower of revolving speed multimode |
| CN209943146U (en) * | 2018-12-27 | 2020-01-14 | 维克（天津）有限公司 | Installation positioning device of shaftless fan for fan coil |
| CN210196082U (en) * | 2019-07-18 | 2020-03-27 | 苏州新捷飞微电机制造有限公司 | Square pipeline fan of direct-connected type |
| CN112696366A (en) * | 2019-10-22 | 2021-04-23 | 福建华泰通风空调装备有限公司 | Rotation speed self-detection anti-self-explosion axial flow fan |
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