CN211819985U

CN211819985U - Fan

Info

Publication number: CN211819985U
Application number: CN202020247956.2U
Authority: CN
Inventors: 顾长峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-10-30
Anticipated expiration: 2030-03-03

Abstract

The utility model discloses a fan, including shell, motor and end cover, the motor establish in the shell, shell one end be fixed with the support, the end cover establish at the shell other end, support and end cover on establish and all be equipped with the fixed orifices that is used for fixing bearing, the motor both ends respectively normal running fit in the bearing, end cover and shell detachable connection, the utility model provides a fan that motor shaft concentricity installation error is little.

Description

Fan

Technical Field

The utility model relates to a machine-building technical field especially relates to a fan.

Background

The fan relies on the mechanical energy of input, improves gas pressure and discharges the machinery of gas, and the essential element of fan has motor, impeller, wind channel, shell etc. and the motor is fixed in the wind channel, according to prior art, has disclosed an integral type fan on the website of national intellectual property office, and publication number is CN207634352U, and it includes two end covers, installs the motor earlier when the motor is installed, installs the end cover and the bearing at wind channel both ends again, can't guarantee the concentricity of motor shaft like this, and installation error is big.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the defects of the prior art are overcome, and the fan with the small installation error of the concentricity of the motor shaft is provided.

The utility model adopts the technical proposal that: the utility model provides a fan, includes shell, motor and end cover, the motor establish in the shell, shell one end be fixed with the support, the end cover establish at the shell other end, support and end cover on establish and all be equipped with the fixed orifices that is used for fixing bearing, the motor both ends respectively normal running fit in the bearing, end cover and shell detachable connections.

After the structure more than adopting, compared with the prior art, the utility model has the following advantage: establish an end cover, the shell internal fixation has the support, all be equipped with the fixed orifices on support and the end cover, the mountable bearing of fixed orifices, when installing the motor, all install the bearing at the output shaft both ends of motor earlier, install the bearing of motor output shaft one end in the fixed orifices on the support again, install the end cover again afterwards, install the bearing of the motor output shaft other end in the fixed orifices on the end cover, guarantee the concentricity that motor output shaft one end was installed on the support through the support, install the motor output shaft other end again like this, the concentricity installation error of motor shaft is little.

Preferably, the surface of the end cover close to the center of the shell is provided with at least one clamping plate, the inner side wall of the shell is provided with clamping grooves connected with the clamping plates in a clamping mode, and the clamping plates correspond to the clamping grooves one to one and are convenient to install and disassemble.

Preferably, the number of the clamping plates is three, the clamping plates are distributed along the outer circumference of the end cover, the structure is simple, and the reliability is high.

Preferably, the surface of the end cover close to the center of the shell is provided with a first annular bulge protruding out of the surface of the end cover, and the clamping plate is arranged on the first annular bulge, so that the strength of the end cover is improved, and the reliability is high.

Preferably, the first annular protrusion can be vertically and slidably fitted on the inner wall of the shell, the surface of the end cover close to the center of the shell 1 abuts against the end face of the shell when the end cover is installed on the shell, and the first annular protrusion plays a role in guiding and is convenient for installation and removal of the end cover.

Preferably, the end cover comprises a first annular sleeve, a second annular sleeve and at least one connecting plate, the second annular sleeve is located in the first annular sleeve, the axes of the first annular sleeve and the second annular sleeve are on the same straight line, the connecting plate is connected between the first annular sleeve and the second annular sleeve, the fixing hole is an inner circle of the second annular sleeve, and the end cover is simple in structure and convenient to ventilate and radiate.

Preferably, the surface of the second annular sleeve close to the center of the shell is provided with a second annular bulge protruding out of the surface of the second annular sleeve, the axis of the second annular bulge is on the same straight line with the axis of the second annular sleeve, and the diameter of the inner circle of the second annular bulge is equal to that of the fixing hole, so that the strength of the fixing hole is increased.

Preferably, the bracket comprises a third annular sleeve and an air deflector, the air deflector is distributed along the axis direction of the shell, the air deflector is uniformly fixed on the inner side wall of one end of the shell, the axis of the third annular sleeve is in the same straight line with the axis of the shell, the outer side surface of the third annular sleeve is fixed on the air deflector, the fixing hole is the inner circle of the third annular sleeve, and the air deflector and the inner side wall of the shell form an air duct, so that ventilation and heat dissipation are facilitated, and the structure is simple.

Drawings

Fig. 1 is a perspective view of a fan according to the present invention;

fig. 2 is a front sectional view of a fan according to the present invention;

fig. 3 is a perspective view of a fan end cover according to the present invention;

fig. 4 is a perspective view of the fan housing of the present invention.

The motor comprises a shell 1, a shell 2, a motor 3, an end cover 4, a fixing hole 5, a clamping plate 6, a clamping groove 7, a first annular bulge 8, a first annular sleeve 9, a second annular sleeve 10, a connecting plate 11, a second annular bulge 12, a third annular sleeve 13, an air deflector 14, a support 15, a fan blade 16, a rotor 17 and a stator.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in the figure, the utility model provides a fan, which comprises a shell 1, a motor 2 and an end cover 3, wherein the motor 2 is arranged in the shell 1, one end of the shell 1 is fixed with a bracket 14, the end cover 3 is arranged at the other end of the shell 1, the bracket 14 and the end cover 3 are both provided with fixing holes 4 for fixing bearings, the two ends of the motor 2 are respectively matched in the bearings in a rotating way, the end cover 3 is detachably connected with the shell 1, the utility model has the advantages that the end cover 3 is arranged, the bracket 14 is fixed in the shell 1, the bracket 14 and the end cover 3 are both provided with fixing holes 4, the bearings can be arranged in the fixing holes 4, when the motor 2 is arranged, the bearings are arranged at the two ends of the output shaft of the motor 2, the bearing at one end of the output shaft of the motor 2 is arranged in the fixing hole 4 on the bracket 14, then the end cover 3 is arranged, the bearing at the other end of the output shaft of the motor, the concentricity of one end of the output shaft of the motor 2 on the support 14 is ensured through the support 14, so that the other end of the output shaft of the motor 2 is installed, the concentricity installation error of the motor shaft is small, and the axis of the fixing hole 4 and the axis of the shell 1 are on the same straight line.

The surface that the end cover 3 is close to 1 center of shell be equipped with at least one

joint board

5, 1 inside wall of shell be equipped with draw-in groove 6 of 5 joints of joint board, 5 and the 6 one-to-one of draw-in groove of joint board, be convenient for install and dismantle.

The quantity of joint board 5 be three, joint board 5 distribute along the outer circumference of end cover 3, simple structure, the reliability is high.

The surface of the end cover 3 close to the center of the shell 1 is provided with a first annular bulge 7 protruding out of the surface of the end cover 3, and the clamping plate 5 is arranged on the first annular bulge 7, so that the strength of the end cover 3 is improved, and the reliability is high.

First annular bulge 7 can be on 1 inner wall of shell by sliding fit from top to bottom, the surface at the nearly shell 1 center of end cover 3 support and lean on at 1 terminal surface of shell when end cover 3 installs on shell 1, first annular bulge 7 plays the guide effect, the installation and the dismantlement of end cover 3 of being convenient for simultaneously, the diameter of the protruding 7 excircle of first annular is less than the diameter of the 3 excircle of end cover.

End cover 3 include first annular cover 8, second annular cover 9 and at least one connecting plate 10, second annular cover 9 be located first annular cover 8, 8 axes of first annular cover and 9 axes of second annular cover on same straight line, connecting plate 10 connect between first annular cover 8 and second annular cover 9, fixed orifices 4 in the circle in the second annular cover 9, simple structure, be convenient for ventilate and the heat dissipation, preferentially, the quantity of connecting plate 10 is six, connecting plate 10 along circumference evenly distributed.

The surface of the second annular sleeve 9 close to the center of the shell 1 is provided with a second annular bulge 11 protruding out of the surface of the second annular sleeve 9, the axis of the second annular bulge 11 and the axis of the second annular sleeve 9 are on the same straight line, the diameter of the inner circle of the second annular bulge 11 is equal to the diameter of the fixing hole 4, the strength of the fixing hole 4 is increased, and the diameter of the outer circle of the second annular bulge 11 is smaller than that of the outer circle of the second annular sleeve 9.

The support 14 comprises a third annular sleeve 12 and an air deflector 13, the air deflector 13 is distributed along the axis direction of the shell 1, the air deflector 13 is uniformly fixed on the inner side wall of one end of the shell 1, the axis of the third annular sleeve 12 is on the same straight line with the axis of the shell 1, the outer side surface of the third annular sleeve 12 is fixed on the air deflector 13, the fixing hole 4 is the inner circle of the third annular sleeve 12, the air deflector 13 and the inner side wall of the shell 1 form an air duct, so that ventilation and heat dissipation are facilitated, the structure is simple, the air deflector 13 is S-shaped, the heat dissipation speed is high, and a second annular bulge 11 protruding out of the third annular sleeve 12 is also arranged on the surface of the center of the third annular sleeve 12.

The motor 2 comprises a rotor 16 and a stator 17, an output shaft of the motor is arranged in the stator, the stator 17 rotates in the rotor 16, and one end of the output shaft of the motor, which extends out of the support 14, is provided with a fan blade 15.

Particularly, the utility model discloses an end cover 3 is established to the principle, there is support 14 at 1 internal fixation of shell, all be equipped with fixed orifices 4 on support 14 and the

end cover

3, 4 mountable bearings in fixed orifices, when installing motor 2, all install the bearing earlier at motor 2's output shaft both ends, install the bearing of motor 2 output shaft one end in fixed orifices 4 on support 14 again, install end cover 3 again after that, install the bearing of the motor 2 output shaft other end in fixed orifices 4 on end cover 3, guarantee through support 14 that motor 2 output shaft one end installs the concentricity on support 14, install the motor 2 output shaft other end again like this, the concentricity installation error of motor shaft is little.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a fan, includes shell (1), motor (2) and end cover (3), motor (2) establish in shell (1), its characterized in that: shell (1) one end be fixed with support (14), end cover (3) establish at shell (1) other end, support (14) and end cover (3) on establish and all be equipped with fixed orifices (4) that are used for fixing bearing, motor (2) both ends respectively normal running fit in the bearing, end cover (3) and shell (1) detachable connection.

2. The fan of claim 1, wherein: the surface that end cover (3) are nearly shell (1) center be equipped with at least one joint board (5), shell (1) inside wall be equipped with draw-in groove (6) with joint board (5) joint, joint board (5) and draw-in groove (6) one-to-one.

3. The fan of claim 2, wherein: the number of the clamping plates (5) is three, and the clamping plates (5) are distributed along the outer circumference of the end cover (3).

4. The fan of claim 2, wherein: the surface of the end cover (3) close to the center of the shell (1) is provided with a first annular bulge (7) protruding out of the surface of the end cover (3), and the clamping plate (5) is arranged on the first annular bulge (7).

5. The fan of claim 4, wherein: the first annular bulge (7) can be in up-and-down sliding fit with the inner wall of the shell (1), and the surface of the end cover (3) close to the center of the shell (1) abuts against the end surface of the shell (1) when the end cover (3) is installed on the shell (1).

6. The fan of claim 1, wherein: end cover (3) include first annular cover (8), second annular cover (9) and at least one connecting plate (10), second annular cover (9) be located first annular cover (8), first annular cover (8) axis and second annular cover (9) axis on same straight line, connecting plate (10) connect between first annular cover (8) and second annular cover (9), fixed orifices (4) circle in for second annular cover (9).

7. The fan of claim 6, wherein: the surface of the second annular sleeve (9) close to the center of the shell (1) is provided with a second annular bulge (11) protruding out of the surface of the second annular sleeve (9), the axis of the second annular bulge (11) and the axis of the second annular sleeve (9) are on the same straight line, and the diameter of the inner circle of the second annular bulge (11) is equal to that of the fixing hole (4).

8. The fan of claim 1, wherein: the support (14) comprises a third annular sleeve (12) and an air deflector (13), the air deflector (13) is distributed along the axis direction of the shell (1), the air deflector (13) is uniformly fixed on the inner side wall of one end of the shell (1), the axis of the third annular sleeve (12) and the axis of the shell (1) are on the same straight line, the outer side surface of the third annular sleeve (12) is fixed on the air deflector (13), and the fixing hole (4) is the inner circle of the third annular sleeve (12).