CN212155211U

CN212155211U - High-efficiency backward-tilting centrifugal fan

Info

Publication number: CN212155211U
Application number: CN202020409719.1U
Authority: CN
Inventors: 滕文祥
Original assignee: Shandong Deke Blower Co ltd
Current assignee: Shandong Deke Blower Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-15
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a high-efficiency backward-tilting centrifugal fan, which comprises a sealing box, a case, blades, an impeller, a current collector and a centrifugal fan body, wherein the centrifugal fan body is internally welded with a base, the current collector is arranged on the upper surface of the base, the impeller is fixed on the upper surface of the current collector, the impeller is rotatably connected with a main shaft, the outer end surface of one side of the main shaft is fixed with a support rod, the outer end surface of one side of the blade is provided with a limit groove, the blade is inserted into the limit groove through the support rod and is fixed with the main shaft, the sealing box is welded on the upper surface of the impeller, a first sealing gasket is embedded and fixed in the sealing box, the inner wall of the sealing box is fixed with a buffering outer rod, a second sealing gasket is embedded and fixed in the case, the outer surface of one side of the case is fixed with an inner buffering rod, and a spring is fixed on the outer end face of one side of the buffering inner rod. The utility model discloses efficient and be convenient for maintain.

Description

High-efficiency backward-tilting centrifugal fan

Technical Field

The utility model relates to a centrifugal fan's technical field specifically is an efficient hypsokinesis centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

The existing centrifugal fan is low in efficiency, a large amount of air flow loss is caused, the motor can vibrate when the centrifugal fan is used, the motor can be damaged after being used for a long time, the existing centrifugal fan is inconvenient to maintain the motor, the blades cannot be detached, all the blades need to be replaced after damage, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an efficient hypsokinesis centrifugal fan possesses the advantage of efficient and the maintenance of being convenient for, has solved current centrifugal fan inefficiency, has caused the air current to run off in a large number, and the motor can produce vibrations when centrifugal fan uses, and the motor uses for a long time and has damaged, and current centrifugal fan maintains the motor inconvenient, and the blade can not be dismantled, damages and need change all blades, problem that the cost is higher.

In order to achieve the above object, the utility model provides a following technical scheme: a high-efficiency backward-tilting centrifugal fan comprises a seal box, a case, blades, an impeller, a current collector and a centrifugal fan body, wherein a base is welded inside the centrifugal fan body, and the upper surface of the base is provided with a current collector, the impeller is fixed on the upper surface of the current collector, and the interior of the impeller is rotatably connected with a main shaft, a support rod is fixed on the outer end face of one side of the main shaft, a limit groove is arranged on the outer end face of one side of the blade, the blades are inserted into the limiting grooves through the supporting rods and fixed with the main shaft, the seal box is welded on the upper surface of the impeller, a first sealing gasket is embedded and fixed in the sealing box, a buffering outer rod is fixed on the inner wall of the sealing box, a second sealing gasket is embedded and fixed in the case, and an inner buffer rod is fixed on the outer surface of one side of the case and is inserted into the outer buffer rod.

Preferably, a spring is fixed on the outer end face of one side of the inner buffer rod, and the spring is fixed with the outer buffer rod.

Preferably, the first sealing gasket and the second sealing gasket are both made of rubber gaskets.

Preferably, the outer surface of the impeller is provided with an air inlet.

Preferably, the lower surface of the base is welded with a fixing rod, and an air outlet is formed in the base.

Preferably, the supporting rod and the blades are connected with bolts through internal threads, and nuts are connected with the outer end faces of the two sides of the bolts through threads.

Preferably, the rear surface hinge of seal box has the access door, and the rear surface welding of access door has the handle.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model achieves the effects of high efficiency and convenient maintenance by arranging the impeller, the blade, the supporting rod, the bolt, the nut, the main shaft, the sealing box, the case, the first sealing gasket and the second sealing gasket, the main shaft rotates under the action of the power device, the main shaft drives the supporting rod to rotate, the supporting rod drives the blade to rotate, the blade rotates to suck the air flow through the air inlet, the current collector can collect the air flow, the efficiency is higher, the motor is arranged in the case, the motor generates vibration when in use, the motor drives the case to vibrate, the case extrudes the buffering inner rod, the buffering inner rod extrudes the spring, the spring can buffer the vibration force, the motor can be protected from being damaged easily, the service time is longer, when the motor needs to be maintained or replaced, the handle is held by hand, the handle is driven by hand to open the access door, the motor can be, the blade that will damage is taken off, cup joints new blade outside the bracing piece through the spacing groove, with bolt threaded connection in the inside of bracing piece and blade, the nut of screwing, is convenient for change the blade, and it is more convenient to use, and the practicality is stronger.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic top sectional view of the impeller of the present invention;

fig. 3 is a schematic view of the rear view structure of the present invention.

In the figure: 1. a sealing box; 2. a chassis; 3. a buffer outer rod; 4. a spring; 5. an inner buffer rod; 6. a first gasket; 7. a second gasket; 8. a blade; 9. an impeller; 10. a current collector; 11. a centrifugal fan body; 12. an air outlet; 13. a base; 14. fixing the rod; 15. a support bar; 16. a main shaft; 17. a bolt; 18. a nut; 19. a handle; 20. an access door; 21. an air inlet.

Detailed Description

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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides an efficient hypsokinesis centrifugal fan, including seal box 1, machine case 2, blade 8, impeller 9, collector 10 and centrifugal fan body 11, the inside welding of centrifugal fan body 11 has base 13, and the last surface mounting of base 13 has collector 10, the lower surface welding of base 13 has dead lever 14, and base 13's inside has seted up gas outlet 12, main shaft 16 rotates under power device's effect, main shaft 16 drives bracing piece 15 and rotates, bracing piece 15 drives blade 8 and rotates, blade 8 rotates and all inhales the air current through air inlet 21, the air current can be collected to collector 10, efficiency is higher.

Impeller 9 fixes the upper surface at collector 10, and impeller 9's inside rotation is connected with main shaft 16, the outer terminal surface in one side of main shaft 16 is fixed with bracing piece 15, the spacing groove has been seted up to the outer terminal surface in one side of blade 8, and blade 8 pegs graft at the spacing inslot portion through bracing piece 15 and is fixed with main shaft 16, the inside threaded connection of bracing piece 15 and blade 8 has bolt 17, and the equal threaded connection of the outer terminal surface in both sides of bolt 17 has nut 18, air inlet 21 has been seted up to impeller 9's surface, when blade 8 damages, loosen nut 18, unscrew bolt 17, take off damaged blade 8, cup joint new blade 8 outside bracing piece 15 through the spacing groove, with bolt 17 threaded connection in the inside of bracing piece 15 and blade 8, the nut 18 of screwing, be convenient for change blade 8, it is more convenient to use, and the practicality is stronger.

The sealing box 1 is welded on the upper surface of an impeller 9, a first sealing gasket 6 is fixedly embedded in the sealing box 1, an access door 20 is connected on the rear surface of the sealing box 1 in a hinged mode, a handle 19 is welded on the rear surface of the access door 20, a buffering outer rod 3 is fixed on the inner wall of the sealing box 1, a second sealing gasket 7 is fixedly embedded in the case 2, the first sealing gasket 6 and the second sealing gasket 7 are both made of rubber gaskets, a buffering inner rod 5 is fixed on the outer surface of one side of the case 2, the buffering inner rod 5 is inserted in the buffering outer rod 3, a spring 4 is fixed on the outer end surface of one side of the buffering inner rod 5, the spring 4 is fixed with the buffering outer rod 3, the motor is installed in the case 2 and generates vibration when used, the motor drives the case 2 to vibrate, the buffering inner rod 5 is extruded by the case 2, the buffering inner rod 5 extrudes the spring 4, the motor can be protected not to be damaged easily, the service life is longer, when the motor needs to be maintained or replaced, the handle 19 is held by hands, and the handle 19 is driven by hands to open the access door 20, so that the motor can be maintained or replaced.

Of course, as is well known to those skilled in the art, the main shaft 16, the collector 10 and the centrifugal fan body 11 of the present invention also need to provide a power device to enable their normal operation, and as is well known to those skilled in the art, the provision of such power is common and is common to conventional means or common general knowledge, and will not be described herein, and any selection can be made by those skilled in the art according to their needs or convenience.

The working principle is as follows: the main shaft 16 rotates under the action of a power device, the main shaft 16 drives a support rod 15 to rotate, the support rod 15 drives a blade 8 to rotate, the blade 8 rotates to suck air flow through an air inlet 21, a current collector 10 can collect the air flow, the efficiency is high, a motor is arranged in a case 2, when the motor is used, vibration is generated, the motor drives the case 2 to vibrate, the case 2 extrudes a buffer inner rod 5, the buffer inner rod 5 extrudes a spring 4, the spring 4 can buffer vibration force, the motor can be protected from being damaged easily, the service time is long, when the motor needs to be maintained or replaced, a handle 19 is held by hand, the handle 19 is driven by hand to open an access door 20, the motor can be maintained or replaced, when the blade 8 is damaged, a nut 18 is unscrewed, a bolt 17 is unscrewed, the damaged blade 8 is taken down, a new blade 8 is sleeved outside the support rod 15 through a limiting groove, the bolt, the nut 18 is screwed, so that the blade 8 is convenient to replace, the use is more convenient, and the practicability is stronger.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high efficiency hypsokinesis centrifugal fan, includes seal box (1), quick-witted case (2), blade (8), impeller (9), current collector (10) and centrifugal fan body (11), its characterized in that: the centrifugal fan comprises a centrifugal fan body (11), wherein a base (13) is welded inside the centrifugal fan body (11), a current collector (10) is installed on the upper surface of the base (13), an impeller (9) is fixed on the upper surface of the current collector (10), a main shaft (16) is rotatably connected inside the impeller (9), a support rod (15) is fixed on the outer end surface of one side of the main shaft (16), a limit groove is formed in the outer end surface of one side of a blade (8), the blade (8) is inserted into the limit groove through the support rod (15) and fixed with the main shaft (16), a sealing box (1) is welded on the upper surface of the impeller (9), a first sealing gasket (6) is embedded and fixed inside the sealing box (1), a buffering outer rod (3) is fixed on the inner wall of the sealing box (1), a second sealing gasket (7) is embedded and fixed inside the case (2), and a buffering inner rod (5) is fixed on the outer surface, the inner buffer rod (5) is inserted in the outer buffer rod (3).

2. A high efficiency caster centrifugal fan as claimed in claim 1, wherein: and a spring (4) is fixed on the outer end face of one side of the inner buffer rod (5), and the spring (4) is fixed with the outer buffer rod (3).

3. A high efficiency caster centrifugal fan as claimed in claim 1, wherein: the first sealing gasket (6) and the second sealing gasket (7) are both made of rubber gaskets.

4. A high efficiency caster centrifugal fan as claimed in claim 1, wherein: an air inlet (21) is formed in the outer surface of the impeller (9).

5. A high efficiency caster centrifugal fan as claimed in claim 1, wherein: the lower surface of the base (13) is welded with a fixing rod (14), and an air outlet (12) is formed in the base (13).

6. A high efficiency caster centrifugal fan as claimed in claim 1, wherein: the inner threads of the support rod (15) and the blades (8) are connected with bolts (17), and the outer end faces of the two sides of each bolt (17) are connected with nuts (18) in a threaded mode.

7. A high efficiency caster centrifugal fan as claimed in claim 1, wherein: the rear surface hinge connection of seal box (1) has access door (20), and the rear surface welding of access door (20) has handle (19).