CN114017366A - Direct-coupled composite centrifugal fan with quick assembly and disassembly mechanism - Google Patents

Abstract

The invention relates to the technical field of quick assembly and disassembly of centrifugal fans, in particular to a direct-coupled composite centrifugal fan with a quick assembly and disassembly mechanism. According to the invention, the T-shaped metal shaft disc for driving the impeller to rotate is connected with the impeller through the T-shaped metal shaft disc and the connecting disc, so that the T-shaped metal shaft disc for driving the impeller to rotate is arranged outside the driving motor, meanwhile, the fixed disc is arranged on the rotating shaft of the centrifugal shell, and when the centrifugal shell is disassembled, only the connection relation between the fixed disc and the connecting disc needs to be adjusted, so that the rotating shaft of the driving motor and the impeller are prevented from being knocked when the device is installed and disassembled, and the dynamic balance of the impeller during rotation is prevented from being damaged due to knocking of the impeller and the rotating shaft of the driving motor in the knocking process.

Description

Direct-coupled composite centrifugal fan with quick assembly and disassembly mechanism

Technical Field

The invention relates to the technical field of rapid disassembly and assembly of centrifugal fans, in particular to a direct-coupled composite centrifugal fan with a rapid disassembly and assembly mechanism.

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, and is widely used for ventilation, dust exhaust, cooling and the like of factories, mines, tunnels, cooling towers, vehicles, ships and buildings.

In the prior art, an impeller is fixed with a metal shaft disc through a circle of uniformly distributed fasteners, the surface of the metal shaft disc is coated with a composite material anticorrosive layer, the center of the metal shaft disc is hollow and is provided with a key slot, the hollow specification of the shaft disc is consistent with that of a matched motor shaft, and a driving motor shaft extends into the shaft disc and is fixed by one or more bolts through threaded holes drilled on the outer circle of the shaft disc;

the existing defects or shortcomings are mainly as follows:

firstly, due to the requirement of processing an assembly gap in an inner hole of a metal shaft disc arranged on an impeller and the tight fit of the impeller and a motor shaft, the motor shaft and the impeller shaft disc can be slowly matched in place only by forcefully knocking with a tool during assembly, the impeller body and a motor bearing are easily damaged during knocking, and the dynamic balance damage of a rotor caused by assembly is easy to occur;

secondly, because the standard shaft length of the motor is limited, and the space distance of the impeller extending out of the shell and connected with the motor is very narrow, although the impeller is easy to assemble, the impeller and the motor are separated when the impeller or the motor is in failure and needs to be maintained, the original assembling mode and fixing mode are very difficult, and the secondary damage of the impeller and the motor is easily caused due to the slow disassembling process.

Disclosure of Invention

The invention aims to provide a direct-coupled composite centrifugal fan with a quick assembling and disassembling mechanism, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides a direct-coupled composite centrifugal fan with a quick assembly and disassembly mechanism, which comprises a metal support, the metal support and a centrifugal shell fixed on the upper side of the metal support, a driving motor is arranged on one side of the centrifugal shell, a connecting mechanism for connection is arranged between the driving motor and the centrifugal shell, the connecting mechanism comprises an impeller and a T-shaped metal shaft disc connected to one side of the impeller through screws, a connecting disc is arranged at one end, far away from the impeller, of the T-shaped metal shaft disc, a fixed disc is arranged on one side of the connecting disc, a plurality of through holes are uniformly formed in the side wall between the connecting disc and the fixed disc in an annular arrangement mode, and bolts penetrating through the through holes are installed on the fixed disc and the connecting disc.

As a further improvement of the technical scheme, the middle part of the fixed disc is provided with a shaft hole, and one end of the rotating shaft of the centrifugal shell is inserted in the shaft hole and fixedly connected by using a flat key.

As a further improvement of the technical scheme, the bottom of the driving motor is fixed on one side of the metal support, and the impeller is rotatably arranged inside the driving motor.

As a further improvement of the technical scheme, one end of the T-shaped metal shaft disc penetrates through the driving motor and extends out, a plurality of threaded holes are formed in the end portions of the connecting disc and the T-shaped metal shaft disc, and connecting screws used for connecting the connecting disc and the T-shaped metal shaft disc are installed inside the threaded holes.

As a further improvement of the technical scheme, a placing groove is formed in the middle of one side, close to the fixed disc, of the connecting disc, and a nut of the connecting screw is arranged inside the placing groove.

As a further improvement of the technical scheme, one side of the driving motor is connected with an air inlet disc for air inlet, and an air outlet for air outlet is arranged on the upper side of the driving motor.

Compared with the prior art, the invention has the beneficial effects that:

in this associated mode combined material centrifugal fan with quick dismouting mechanism, T shape metal reel and impeller through setting up are connected, and connect through connection pad and T shape metal reel, make the rotatory T shape metal reel setting of drive impeller in driving motor's outside, install the fixed disk in centrifugal casing's pivot simultaneously, when dismantling, only need adjust the relation of connection between fixed disk and the connection pad, when having removed installation and dismounting device from, strike driving motor's pivot and impeller, avoided knocking the in-process impeller and driving motor's pivot and having knocked the damage, and destroy the dynamic balance when the impeller is rotatory, simultaneously at the in-process of installation and dismantlement, only need install and dismantle the bolt, reduce the device installation, the difficulty of dismantlement, accelerate the speed of device installation and dismantlement.

Drawings

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

FIG. 2 is a front view of the overall structure of the present invention;

FIG. 3 is a schematic view of the coupling mechanism of the present invention;

fig. 4 is an exploded view of a portion of the inventive coupling mechanism.

The various reference numbers in the figures mean:

1. a metal bracket;

2. a drive motor;

3. a centrifugal housing;

4. a connecting mechanism; 41. an impeller; 42. a T-shaped metal hub; 43. a connecting disc; 44. fixing the disc; 45. a shaft hole; 46. a port; 47. a threaded hole; 48. a placement groove; 49. a bolt;

5. an air inlet disc; 6. and (7) air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Example 1

Referring to fig. 1-4, the present embodiment provides a direct-coupled composite centrifugal fan with a quick-assembly and disassembly mechanism, including a metal bracket 1, the metal bracket 1 and a centrifugal casing 3 fixed on the upper side of the metal bracket 1, a driving motor 2 is disposed on one side of the centrifugal casing 3, a connecting mechanism 4 for connection is disposed between the driving motor 2 and the centrifugal casing 3, the connecting mechanism 4 includes an impeller 41 and a T-shaped metal shaft disc 42 screwed on one side of the impeller 41, a connecting disc 43 is disposed on one end of the T-shaped metal shaft disc 42 away from the impeller 41, a fixing disc 44 is disposed on one side of the connecting disc 43, a plurality of through holes 46 are uniformly arranged in a ring shape on the side wall between the connecting disc 43 and the fixing disc 44, and bolts 49 penetrating through the through holes 46 are mounted on the fixing disc 44 and the connecting disc 43.

The middle part of the fixed disc 44 is provided with a shaft hole 45, one end of the rotating shaft of the centrifugal shell 3 is inserted in the shaft hole 45 and fixedly connected by using a flat key;

one end of the T-shaped metal shaft disc 42 penetrates through the driving motor 2 and extends out, a plurality of threaded holes 47 are formed in the end portions of the connecting disc 43 and the T-shaped metal shaft disc 42, and connecting screws used for connecting the connecting disc 43 and the T-shaped metal shaft disc 42 are installed inside the threaded holes 47;

the bottom of the driving motor 2 is fixed on one side of the metal bracket 1, and the impeller 41 is rotatably disposed inside the driving motor 2.

The working principle is as follows:

the T-shaped metal shaft disc 42 is arranged on the impeller 41, the connecting disc 43 is arranged on the T-shaped metal shaft disc 42, the fixed disc 44 is inserted on the rotating shaft of the driving motor 2, the fixed disc 44 and the rotating shaft of the driving motor 2 are fixed by using a flat key, when the driving motor 2 and the centrifugal case 3 are disassembled, the bolts 49 are disassembled from the fixed disk 44 and the connecting disk 43, and the bolts 49 are removed from the through holes 46 to separate the fixing plate 44 from the connecting plate 43, thereby avoiding the need to install and remove the device, the rotating shaft of the driving motor 2 and the impeller 41 are knocked, so that the impeller 41 and the rotating shaft of the driving motor 2 are prevented from being knocked and damaged in the knocking process, further, the dynamic balance of the impeller 41 during rotation is destroyed, and meanwhile, in the process of installation and disassembly, only the bolt 49 needs to be installed and disassembled, so that the difficulty of installation and disassembly of the device is reduced, and the speed of installation and disassembly of the device is increased.

In order to prevent the screws for connecting the connecting disc 43 and the T-shaped metal shaft disc 42 from obstructing the installation of the fixing disc 44, the middle part of the connecting disc 43 near one side of the fixing disc 44 is provided with a placing groove 48, the nut of the connecting screw is arranged inside the placing groove 48, one end of the screw is enabled not to exceed the plane of one end of the connecting disc 43 by installing the screw in the placing groove 48, when the fixing disc 44 is connected with the connecting disc 43 through the bolt 49, the screw for connecting the connecting disc 43 and the T-shaped metal shaft disc 42 can not obstruct the adhesion between the fixing disc 44 and the connecting disc 43, and the stability of the connection between the fixing disc 44 and the connecting disc 43 is ensured.

One side of driving motor 2 is connected with air inlet disk 5 that is used for the air inlet, and air inlet disk 5 is provided with circularly to in the outside air enters into driving motor 2, driving motor 2's upside sets up and is provided with air outlet 6 that is used for the air-out, and air outlet 6 can set up to circular or square according to the shape of the pipeline of connecting, so that air outlet 6 and the connection of other devices.

The associated mode combined material centrifugal fan with quick assembly disassembly mechanism of this embodiment, when dismantling driving motor 2 and centrifugal housing 3, dismantle bolt 49 from fixed disk 44 and connection pad 43, and take bolt 49 away from opening 46, make fixed disk 44 and connection pad 43 separation, removed when installation and dismounting device from, strike driving motor 2's pivot and impeller 41, avoided knocking in-process impeller 41 and driving motor 2's pivot and knocked the damage, simultaneously at the in-process of installation and dismantlement, only need install and dismantle bolt 49, the reducing means installation, the difficulty of dismantlement, accelerate the speed of device installation and dismantlement.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an associated mode combined material centrifugal fan with quick assembly disassembly mechanism, includes metal support (1), metal support (1) and centrifugal casing (3) of fixing at metal support (1) upside, one side of centrifugal casing (3) is provided with driving motor (2), be provided with coupling mechanism (4) that are used for connecting between driving motor (2) and centrifugal casing (3), its characterized in that: coupling mechanism (4) include impeller (41) and screw connection T shape metal hub (42) in impeller (41) one side, the one end that impeller (41) were kept away from in T shape metal hub (42) is provided with connection pad (43), one side of connection pad (43) is provided with fixed disk (44), a plurality of opening (46) have evenly been seted up to the annular arrangement on the lateral wall between connection pad (43) and fixed disk (44), just install bolt (49) that run through opening (46) on fixed disk (44) and connection pad (43).

2. The direct-coupled composite centrifugal fan with quick-release mechanism according to claim 1, characterized in that: the middle part of the fixed disc (44) is provided with a shaft hole (45), and one end of the rotating shaft of the centrifugal shell (3) is inserted in the shaft hole (45) and fixedly connected by using a flat key.

3. The direct-coupled composite centrifugal fan with quick-release mechanism according to claim 1, characterized in that: the bottom of the driving motor (2) is fixed on one side of the metal support (1), and the impeller (41) is rotatably arranged inside the driving motor (2).

4. The direct-coupled composite centrifugal fan with quick-release mechanism according to claim 1, characterized in that: the one end of T shape metal hub (42) runs through driving motor (2) and extends away, a plurality of screw hole (47) have all been seted up to the tip of connection pad (43) and T shape metal hub (42), the internally mounted of screw hole (47) has the connecting screw that is used for connecting connection pad (43) and T shape metal hub (42).

5. The direct-coupled composite centrifugal fan with quick-release mechanism according to claim 1, characterized in that: the middle part of one side, close to the fixed disc (44), of the connecting disc (43) is provided with a placing groove (48), and the nut of the connecting screw is arranged inside the placing groove (48).

6. The direct-coupled composite centrifugal fan with quick-release mechanism according to claim 1, characterized in that: one side of driving motor (2) is connected with air inlet dish (5) that are used for the air inlet, and the upside setting of driving motor (2) is provided with air outlet (6) that are used for the air-out.

Images