CN220706060U - Impeller mounting structure of centrifugal fan - Google Patents

Abstract

The utility model discloses an impeller mounting structure of a centrifugal ventilator, which comprises a back plate; a backboard: the rear end is provided with the motor, the output shaft front end of motor runs through the inside round hole of backplate and exposes to the outside of backplate, the output of external control switch is connected to the input electricity of motor, the output shaft front end sliding connection of motor has the adapter sleeve, the front end of adapter sleeve has the impeller mounting panel through bolted connection, the front end of impeller mounting panel evenly is provided with the blade, the front end of blade all with the rear end fixed connection of connecting plate, fixed screw hole has been seted up to the output shaft front end of motor, the jack has been seted up to the inside of adapter sleeve, peg graft in the inside of jack has fixing bolt, fixing bolt and fixed screw hole cooperation installation, the extrados sliding connection of the output shaft of motor has the adjusting block, the adjusting block is installed with the adapter sleeve cooperation, the impeller mounting structure of this centrifugal fan can the quick adjustment impeller, it is more convenient to use, the range of application is wider.

Description

Impeller mounting structure of centrifugal fan

Technical Field

The utility model relates to the technical field of centrifugal ventilators, in particular to an impeller mounting structure of a centrifugal ventilator.

Background

The centrifugal ventilator is a machine which increases the pressure of gas through mechanical energy and then conveys the gas out, and is one of four parts in a dust removing ventilation system, and negative pressure is formed inside the fan by means of rotation of an impeller, so that external gas is sucked in and discharged out of the fan through an impeller runner and a volute. The damping method of ventilator is to install ventilator on damping pedestal and to install damper or damping lining between the pedestal and floor or foundation to play the role of damping. Most of impellers of the centrifugal fan are installed through shaft sleeve matching bolts, the length of the shaft sleeve is fixed, the installation distance of different shaft sleeves is fixed, and when the installation positions of different impellers are needed, the shaft sleeves with different lengths are needed, so that the use is inconvenient.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides an impeller mounting structure of a centrifugal fan, which can quickly adjust the mounting position of an impeller and can effectively solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an impeller mounting structure of a centrifugal ventilator comprises a back plate;

a backboard: the rear end is provided with the motor, the output shaft front end of motor runs through the inside round hole of backplate and exposes to the outside of backplate, the output of external control switch is connected to the input electricity of motor, the output shaft front end sliding connection of motor has the adapter sleeve, the front end of adapter sleeve has the impeller mounting panel through bolted connection, the front end of impeller mounting panel evenly is provided with the blade, the front end of blade all with the rear end fixed connection of connecting plate, fixed screw hole has been seted up to the output shaft front end of motor, the jack has been seted up to the inside of adapter sleeve, the inside grafting of jack has fixing bolt, fixing bolt and fixed screw hole cooperation installation, the mounted position of impeller can be fast adjustment, and is more convenient to use, the range of application is wider.

Further, the outer cambered surface sliding connection of the output shaft of motor has the adjusting block, and the adjusting block is installed with the adapter sleeve cooperation, and the inside of the output shaft of motor is connected with adjusting screw through bearing rotation, and adjusting screw's outer cambered surface sliding connection has the stopper, and the internal face fixed connection of stopper and adjusting block, the spacing groove has been seted up to the inside of the output shaft of motor, spacing groove and stopper sliding connection, the mounted position that can adjust impeller.

Further, the outer cambered surface of the adjusting screw is provided with a first bevel gear, a rotating shaft is connected to the inside of an output shaft of the motor through a second bearing in a rotating mode, a second bevel gear is arranged at the lower end of the rotating shaft, the first bevel gear is meshed with the second bevel gear, and the adjusting screw can be driven to operate.

Further, the upper end of the rotating shaft is provided with a connecting block, and the upper end of the connecting block is provided with a hexagonal hole which can drive the rotating shaft to operate.

Further, the outer cambered surface of the output shaft of the motor is provided with scale marks, so that the installation position of the impeller can be conveniently adjusted.

Further, the rear end of backplate is provided with the support frame, and the upper end of support frame and the lower extreme fixed connection of motor can support the motor.

Furthermore, the fixing holes are uniformly formed in the back plate, so that the back plate can be fixed conveniently.

Compared with the prior art, the utility model has the beneficial effects that: the impeller mounting structure of the centrifugal ventilator has the following advantages:

the rotating shaft is rotated through the external tool and the hexagonal hole, so that the bevel gear I and the bevel gear II are driven to start to operate, the adjusting screw can be driven to operate, the adjusting screw can drive the adjusting block to move under the limiting action of the limiting groove and the limiting block, the position of the adjusting block is adjusted, the mounting position of the impeller of the connecting sleeve can be adjusted, the mounting structure of the impeller can be used for quickly adjusting the mounting position of the impeller, and the impeller is more convenient to use in the centrifugal ventilator.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a right side view of the present utility model;

FIG. 3 is a schematic view of the internal cross-sectional structure of the present utility model;

fig. 4 is an enlarged schematic view of the structure of the present utility model at a.

In the figure: the device comprises a back plate 1, a motor 2, a connecting sleeve 3, an impeller mounting plate 4, blades 5, a connecting plate 6, a fixing threaded hole 7, a jack 8, a fixing bolt 9, an adjusting block 10, an adjusting screw 11, a limiting block 12, a limiting groove 13, a bevel gear I14, a rotating shaft 15, a bevel gear II 16, a connecting block 17, a hexagonal hole 18, a scale mark 19, a supporting frame 20 and a fixing hole 21.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present embodiment provides a technical solution: an impeller mounting structure of a centrifugal ventilator comprises a back plate 1;

backboard 1: the rear end of the motor is provided with a motor 2, the front end of an output shaft of the motor 2 penetrates through a round hole in the back plate 1 and is exposed to the outside of the back plate 1, the input end of the motor 2 is electrically connected with the output end of an external control switch, the front end of the output shaft of the motor 2 is slidably connected with a connecting sleeve 3, the front end of the connecting sleeve 3 is connected with an impeller mounting plate 4 through bolts, the front end of the impeller mounting plate 4 is uniformly provided with blades 5, the front ends of the blades 5 are fixedly connected with the rear end of a connecting plate 6, the front end of the output shaft of the motor 2 is provided with a fixing threaded hole 7, the inside of the connecting sleeve 3 is provided with a jack 8, the inside of the jack 8 is inserted with a fixing bolt 9, the fixing bolt 9 is matched with the fixing threaded hole 7, the outer cambered surface of the output shaft of the motor 2 is slidably connected with an adjusting block 10, the adjusting block 10 is matched with the connecting sleeve 3, the inside of the output shaft of the motor 2 is rotationally connected with an adjusting screw 11 through a bearing, the outer cambered surface of the adjusting screw 11 is slidably connected with a limiting block 12, the limiting block 12 is fixedly connected with the inner wall surface of the adjusting block 10, a limiting groove 13 is formed in the output shaft of the motor 2, the limiting groove 13 is slidably connected with the limiting block 12, the outer cambered surface of the adjusting screw 11 is provided with a bevel gear I14, the inner part of the output shaft of the motor 2 is rotatably connected with a rotating shaft 15 through a bearing II, the lower end of the rotating shaft 15 is provided with a bevel gear II 16, the bevel gear I14 is meshed with the bevel gear II 16, the upper end of the rotating shaft 15 is provided with a connecting block 17, the upper end of the connecting block 17 is provided with a hexagonal hole 18, the outer cambered surface of the output shaft of the motor 2 is provided with a scale mark 19, the rear end of the back plate 1 is provided with a supporting frame 20, the upper end of the supporting frame 20 is fixedly connected with the lower end of the motor 2, a fixing hole 21 is uniformly formed in the back plate 1, firstly, the back plate 1 is installed at the corresponding position inside the centrifugal ventilator through the fixing hole 21, the impeller mounting plate 4 is installed on the connecting sleeve 3 through a bolt, the connecting sleeve 3 is installed on the output shaft of the motor 2, the rear end of the connecting sleeve 3 is tightly attached to the front end of the adjusting block 10, then the fixing bolt 9 is screwed into the fixing threaded hole 7 and the inside of the jack 8, the connecting sleeve 3 can be fixed through the fixing bolt 9, the installation of the impeller can be completed, the motor 2 starts to operate through the external control switch, the motor 2 drives the impeller mounting plate 4 and the blades 5 to start operating, the centrifugal ventilator can be driven to operate, the centrifugal ventilator is convenient to use, when the installation position of the impeller needs to be adjusted, the rotating shaft 15 is rotated through the external tool and the hexagonal hole 18, so that the bevel gear I14 and the bevel gear II 16 are driven to start operating, the adjusting screw 11 can be driven to operate, the adjusting block 10 can be driven to move under the limiting action of the limiting groove 13 and the limiting block 12, and then the installation position of the impeller of the connecting sleeve 3 can be adjusted, so that the installation position of the impeller can be rapidly adjusted.

The utility model provides an impeller mounting structure of a centrifugal ventilator, which has the following working principle: when the impeller is required to be installed, firstly, the back plate 1 is installed at the corresponding position in the centrifugal ventilator through the fixing hole 21, the impeller mounting plate 4 is installed on the connecting sleeve 3 through a bolt, the connecting sleeve 3 is installed on the output shaft of the motor 2, the rear end of the connecting sleeve 3 is tightly attached to the front end of the adjusting block 10, then the fixing bolt 9 is screwed into the fixing threaded hole 7 and the jack 8, the connecting sleeve 3 can be fixed through the fixing bolt 9, the installation of the impeller can be completed, the motor 2 starts to operate through the external control switch, the motor 2 drives the impeller mounting plate 4 and the blades 5 to operate, the centrifugal ventilator can be driven to operate, the centrifugal ventilator is convenient to use, when the installation position of the impeller is required to be adjusted, the rotating shaft 15 is rotated through the external tool and the hexagonal hole 18, so that the bevel gear I14 and the bevel gear II 16 are driven to operate, the adjusting screw 11 can be driven to move under the limiting effect of the limiting groove 13 and the limiting block 12, and then the installation position of the impeller of the connecting sleeve 3 can be adjusted, the impeller mounting structure can be used for rapidly adjusting the installation position of the impeller, and the centrifugal ventilator can be used more conveniently.

It should be noted that the motor 2 disclosed in the above embodiment may be 7IK750GU-SF, and the external control switch is provided with a control button for controlling the switch corresponding to the motor 2.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (7)

1. An impeller mounting structure of centrifugal fan, its characterized in that: comprises a back plate (1);

backboard (1): the rear end is provided with motor (2), the output shaft front end of motor (2) runs through the inside round hole of backplate (1) and exposes to the outside of backplate (1), the output of outside control switch is connected to the input electricity of motor (2), output shaft front end sliding connection of motor (2) has adapter sleeve (3), the front end of adapter sleeve (3) has impeller mounting panel (4) through bolted connection, the front end of impeller mounting panel (4) evenly is provided with blade (5), the front end of blade (5) all with the rear end fixed connection of connecting plate (6), fixed screw hole (7) have been seted up to the output shaft front end of motor (2), jack (8) have been seted up to the inside of adapter sleeve (3), fixed bolt (9) have been pegged graft in the inside of jack (8), fixed bolt (9) are installed with fixed screw hole (7) cooperation.

2. The impeller mounting structure of a centrifugal fan according to claim 1, wherein: the utility model discloses a motor, including motor (2), adjusting block (10) is connected with in the extrados sliding connection of the output shaft of motor (2), adjusting block (10) and adapter sleeve (3) cooperation installation, and the inside of the output shaft of motor (2) is connected with adjusting screw (11) through bearing rotation, and the extrados sliding connection of adjusting screw (11) has stopper (12), and the internal face fixed connection of stopper (12) and adjusting block (10), limit groove (13) have been seted up to the inside of the output shaft of motor (2), limit groove (13) and stopper (12) sliding connection.

3. The impeller mounting structure of a centrifugal fan according to claim 2, wherein: the outer cambered surface of the adjusting screw (11) is provided with a first bevel gear (14), the inside of the output shaft of the motor (2) is rotationally connected with a rotating shaft (15) through a second bearing, the lower end of the rotating shaft (15) is provided with a second bevel gear (16), and the first bevel gear (14) is in meshed connection with the second bevel gear (16).

4. A centrifugal fan impeller mounting structure according to claim 3, wherein: the upper end of the rotating shaft (15) is provided with a connecting block (17), and the upper end of the connecting block (17) is provided with a hexagonal hole (18).

5. The impeller mounting structure of a centrifugal fan according to claim 1, wherein: the outer cambered surface of the output shaft of the motor (2) is provided with scale marks (19).

6. The impeller mounting structure of a centrifugal fan according to claim 1, wherein: the rear end of the backboard (1) is provided with a support frame (20), and the upper end of the support frame (20) is fixedly connected with the lower end of the motor (2).

7. The impeller mounting structure of a centrifugal fan according to claim 1, wherein: fixing holes (21) are uniformly formed in the back plate (1).