CN215444501U

CN215444501U - Axial-flow fan

Info

Publication number: CN215444501U
Application number: CN202121340903.6U
Authority: CN
Inventors: 李涛
Original assignee: Beijing Konghang Aviation Technology Co ltd
Current assignee: Beijing Konghang Aviation Technology Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-01-07
Anticipated expiration: 2031-06-16

Abstract

The utility model relates to an axial-flow fan, it includes shell, motor and impeller, the output shaft of motor with impeller fixed connection, motor and impeller all fixed set up in the shell, still include a plurality of electric capacities and be used for with electric capacity is fixed at the bottom fixed part of shell outer wall, top fixed part and mounting, bottom fixed part is located between electric capacity and the shell, and is provided with the parcel the first arc constant head tank of electric capacity lateral wall, top fixed part is located one side that bottom fixed part was kept away from to electric capacity, and is provided with the parcel the second arc constant head tank of electric capacity lateral wall, fixed part's both ends in bottom and top fixed part's both ends difference fixed connection, mounting one end is connected electric capacity, the other end is connected the outer wall of shell. This application can improve the stability of electric capacity installation, makes axial-flow fan overall structure compact.

Description

Axial-flow fan

Technical Field

The application relates to the field of fans, in particular to an axial-flow fan.

Background

The axial flow fan is also called a local fan, is a fan commonly used by industrial and mining enterprises, is different from a common fan, has a motor and fan blades in a cylinder, has a cylindrical shape, is used for local ventilation, is convenient to install, has obvious ventilation and air exchange effects, is safe, and can be connected with the cylinder to send air to a designated area.

At present, the normal start of fan is guaranteed through setting up starting capacitor on the axial-flow fan, improves the area load capacity of motor through the operating capacitor, sets up the mounted position of electric capacity on the axial-flow fan for the installation of electric capacity usually, has increased the volume of axial-flow fan.

With respect to the related art in the above, the inventors consider that the stability of the mounting of the capacitor is poor.

SUMMERY OF THE UTILITY MODEL

In order to improve the stability of electric capacity installation, this application provides an axial-flow fan.

The application provides an axial-flow fan adopts following technical scheme:

the utility model provides an axial-flow fan, includes shell, motor and impeller, the output shaft of motor with impeller fixed connection, motor and impeller all fixed set up in the shell, still include a plurality of electric capacity and be used for with electric capacity fixes bottom fixed part, top fixed part and the mounting at the shell outer wall, bottom fixed part is located between electric capacity and the shell, and is provided with the parcel the first arc constant head tank of electric capacity lateral wall, top fixed part is located one side that bottom fixed part was kept away from to electric capacity, and is provided with the parcel the second arc constant head tank of electric capacity lateral wall, fixed part's both ends in bottom and top fixed part's both ends are fixed connection respectively, mounting one end is connected electric capacity, the other end is connected the outer wall of shell.

Through adopting above-mentioned technical scheme, a plurality of electric capacity pass through first mounting and the fixed setting of second mounting on the lateral wall of axial-flow fan shell, need not increase torch mounting structure, and overall structure is compact, improves the stability of electric capacity installation.

Optionally, including first staple bolt, first staple bolt including constitute the first staple bolt of going up of top fixed part and constitute the first staple bolt of bottom fixed part, the both ends of first staple bolt deviate from each other and extend, form with the second connecting portion of the outer wall adaptation of shell, the both ends of first staple bolt deviate from each other and extend, form with the first connecting portion of the outer wall adaptation of shell, set up the fixed orifices of mutually supporting on first connecting portion and the second connecting portion, first staple bolt and the first staple bolt of going up cooperate each other and form the installation space of electric capacity, the shape of installation space with the shape adaptation of electric capacity.

Through adopting above-mentioned technical scheme, first staple bolt and the first staple bolt of going up mutually support and form electric capacity installation space, and electric capacity installation space's shape and electric capacity's shape adaptation increase the fixed stability of electric capacity.

Optionally, including the second staple bolt, the second staple bolt is including staple bolt under the second that constitutes the fixed part of bottom and first staple bolt piece and the second staple bolt piece that constitutes the fixed part of top, and the both ends of staple bolt deviate from each other the extension under the second, form with the third connecting portion of shell outer wall adaptation, first staple bolt piece one end extend form with third connecting portion complex fourth connecting portion, second staple bolt piece one end extend form with third connecting portion complex fifth connecting portion, the other end of first staple bolt piece and second staple bolt piece passes through the connecting piece and connects.

Optionally, the connecting piece is a bolt and a nut.

Through adopting above-mentioned technical scheme, through bolt and nut cooperation, the second staple bolt of being convenient for loosen, lock, improve the convenience of electric capacity installation.

Optionally, the fixing element includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are vertically connected, one end of the first connecting plate, which is far away from the second connecting plate, is fixedly connected to the housing, and one end of the second connecting plate, which is far away from the first connecting plate, is connected to the capacitor through a bolt and a nut in a matching manner.

Through adopting above-mentioned technical scheme, the second mounting includes first connecting plate and second connecting plate, and first connecting plate and second connecting plate are connected perpendicularly, first connecting plate and shell fixed connection, and second connecting plate and electric capacity fixed connection increase the stability of electric capacity installation.

Optionally, a lock washer is disposed between the nut and the second connecting plate.

Through adopting above-mentioned technical file, be provided with lock washer between nut and second connecting plate, when axial-flow fan work produced the vibration, lock washer's design can reduce the vibration to the influence of nut, reduces the condition that the vibrations that produce because of work lead to the fixed effect of second mounting to electric capacity to weaken.

Optionally, the fixing piece wraps a first connecting plate and a second connecting plate, an inserting box is arranged on the outer wall of the shell, one end of the inserting box is open, limiting holes are symmetrically formed in the side wall of the inserting box, the first connecting plate and the second connecting plate are perpendicularly connected, a mounting groove is formed in one end, away from the second connecting plate, of the first connecting plate, a positioning elastic sheet is arranged in the mounting groove, a through hole corresponding to the limiting hole is formed in the side wall of the mounting groove, the first connecting plate is inserted into the inserting box through the matching of the positioning elastic sheet, the through hole and the limiting hole, and one end, away from the second connecting plate, of the first connecting plate is connected with the capacitor.

Through adopting above-mentioned technical scheme, set up on the outer wall of shell and insert the box, insert and symmetrically seted up spacing hole on the lateral wall of box, seted up the mounting groove on first connecting plate, be provided with in the mounting groove with spacing hole complex location shell fragment, through pressing the location shell fragment, can fill first connecting plate and insert and take out in the box, the dismantlement of the electric capacity of being convenient for is changed.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the capacitor is directly fixed on the outer wall of the fan shell through the first fixing piece and the second fixing piece, so that the structure is compact, and the stability of capacitor installation is improved;

2. the third connecting plate is connected with the shell through the positioning elastic sheet and the plug box, so that the capacitor is convenient to disassemble and replace.

Drawings

Fig. 1 is a schematic front view of the overall structure of the first embodiment of the present application.

Fig. 2 is a schematic view of the overall structure of the back surface in the first embodiment of the present application.

Fig. 3 is a schematic view of a first hoop structure according to a first embodiment of the present application.

Fig. 4 is a schematic view of a second hoop structure according to a first embodiment of the present application.

Fig. 5 is an enlarged view of a portion a of fig. 2.

Fig. 6 is a schematic view of the entire back surface structure of the second embodiment of the present application.

Fig. 7 is an exploded view of a second fixing member and a cartridge according to a second embodiment of the present application.

Description of reference numerals: 1. a housing; 11. a flange connection; 12. a control box; 13. a capacitor; 131. a threaded rod; 132. a lock washer; 14. a first hoop; 141. a first lower hoop; 1411. a first arc-shaped positioning slot; 1412. a first connection portion; 142. a first upper hoop; 1421. a second connecting portion; 1422. a second arc-shaped positioning groove; 15. a second hoop; 151. a second lower hoop; 1511. a third connecting portion; 152. a first hoop sheet; 1521. a fourth connecting portion; 1522. a sixth connecting portion; 153. a second hoop sheet; 1531. a fifth connecting part; 1532. a seventh connecting portion; 16. a second fixing member; 161. a first connecting plate; 1611. mounting grooves; 1612. positioning the elastic sheet; 1613. a limiting part; 1614. a through hole; 162. a second connecting plate; 17. inserting a box; 171. a limiting hole; 2. a motor; 21. a support bar; 3. an impeller.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses axial-flow fan.

The first embodiment is as follows:

referring to fig. 1 and 2, axial-flow fan includes shell 1, motor 2 and impeller 3, and the fixed a plurality of bracing pieces 21 that are provided with on the lateral wall of motor 2, the inner wall of motor 2's one end fixed connection shell 1 is kept away from to bracing piece 21 to fix motor 2 inside shell 1, shell 1 is both ends open-ended cylindric, motor 2's output shaft is towards the opening of one side, the centre of a circle of motor 2's output shaft fixed connection impeller 3, in order to drive impeller 3 and rotate, impeller 3 is located the opening part of shell 1. The end part of the shell 1 close to the impeller 3 is provided with a flange connecting part 11, which is convenient for the installation and fixation of the axial flow fan. A control box 12 is fixedly arranged outside the shell 1, and a motor 2 controller is arranged in the control box 12 to realize the starting control and overcurrent protection of the motor 2. The control box 12 can be fixed on the outer wall of the housing 1 by welding, screwing or other methods which can realize fixed connection between the two. A threaded connection is preferred in this embodiment.

Through bottom fixed part on the outer wall of axial-flow fan's shell 1, top fixed part and mounting 16 are fixed with a plurality of electric capacity 13, bottom fixed part is located between electric capacity 13 and the shell 1, and be provided with the first arc constant head tank 1411 of parcel electric capacity 13 lateral wall, top fixed part is located electric capacity 13 and keeps away from one side of bottom fixed part, and be provided with the second arc constant head tank 1422 of parcel electric capacity 13 lateral wall, bottom fixed part's both ends and top fixed part's both ends are fixed connection respectively, electric capacity 13 is connected to mounting 16 one end, the outer wall of shell 1 is connected to the other end.

Referring to fig. 2 and 3, in one example, three capacitors 13 are fixed on the outer wall of the housing 1 by a first hoop 14.

First staple bolt 14 is including constituting the first staple bolt 142 of going up of top fixed portion and constituting the first staple bolt 141 of bottom fixed portion, first staple bolt 141 includes first connecting portion 1412 and fixed part, the fixed part includes a rectangular plate, the same one side in both ends of rectangular plate is buckled certain angle, the position of buckling is the arc, the middle part of rectangular plate is sunken to form first arc constant head tank 1411 to the direction that is close to shell 1, first arc constant head tank 1411 and the shape adaptation of electric capacity 13's outer wall, first connecting portion 1412 is the arc, the radian of first connecting portion 1412 and the outer wall adaptation of shell 1, two fixed orificess have been seted up on first connecting portion 1412, the one end of bolt passes the outer wall connection of fixed orifices and shell 1, thereby be fixed in first staple bolt 141 on the outer wall of shell 1.

The first upper hoop 142 comprises a rectangular plate, two ends of the rectangle are bent to the same side to form a second arc-shaped positioning slot 1422 adapted to the shape of the capacitor 13, second connection parts 1421 fitted to the first connection parts 1412 are provided at both ends of the rectangular plate, the second connecting portion 1421 is formed with a fixing hole, the fixing hole of the second connecting portion 1421 corresponds to the fixing hole of the first connecting portion 1412, and when being installed, the first connecting portion 1412 abuts against the outer side wall of the housing 1, the outer wall of the capacitor 13 abuts against the side of the first arc-shaped positioning slot 1411 away from the capacitor, the second connecting portion 1421 is overlapped with the first connecting portion 1412, so that the fixing holes on the first connecting portion 1412 and the second connecting portion 1421 are aligned, the bolts pass through the fixing holes on the first connecting portion 1412 and the second connecting portion 1421 to connect with the outer wall of the housing 1, so that the sidewall of the capacitor 1 abuts against the second arc-shaped positioning groove 1422, and the capacitor 13 is fixed on the outer wall of the housing 1.

The first hoop 14 comprises a first upper hoop 142 and a first lower hoop 141, and the first upper hoop 142 and the first lower hoop 141 are connected with the outer wall of the housing 1 through bolts, so that the structure is simple, and the capacitor 13 is convenient to mount and fix.

Referring to fig. 4, in another example, three capacitors 13 are fixed on the outer wall of the housing 1 through a second anchor ear 15.

The second hoop 15 includes a second lower hoop 151, a first hoop sheet 152 and a second hoop sheet 153, the structure of the second lower hoop 151 is the same as that of the first lower hoop 141 and is not described herein, the second lower hoop 151 includes a third connecting portion 1511, the third connecting portion 1511 contacts with the outer wall of the housing 1, the second lower hoop 151 is fixed on the outer wall of the housing 1 by bolts, the first hoop sheet 152 includes a rectangular plate, one end of the rectangular plate is connected with a fourth connecting portion 1521 adapted to the third connecting portion 1511, the fourth connecting portion 1521 is connected to the third connecting portion 1511 by bolts, the second hoop sheet 153 includes a rectangular plate, one end of the rectangular plate is connected to a fifth connecting portion 1531 adapted to the third connecting portion 1511, and the fifth connecting portion 1531 is connected to the third connecting portion 1511 by bolts.

One end of the first hoop sheet 152 far from the fourth connecting portion 1521 and one end of the second hoop sheet 152 far from the fifth connecting portion 1531 are bent by a certain radian relatively, a second arc-shaped positioning groove 1422 is formed, one end of the first hoop sheet 152 far from the fourth connecting portion 1521 is provided with a sixth connecting portion 1522 relatively, one end of the second hoop sheet 153 far from the fifth connecting portion 1531 is provided with a seventh connecting portion 1532 relatively, fixing holes are correspondingly formed in the sixth connecting portion 1522 and the seventh connecting portion 1532, a bolt is arranged in the fixing hole by one side of the seventh connecting portion 1532 in a penetrating manner, one side of the sixth connecting portion 1522 far from the seventh connecting portion 1532 is locked by a nut, connection between the first hoop sheet 152 and the second hoop sheet 153 is achieved, an installation space for the capacitor 13 is formed between the second lower hoop 151 and the second arc-shaped positioning groove 1422, and the capacitor 13 is arranged in the installation space.

The second hoop 15 includes a second lower hoop 151, a first hoop sheet 152 and a second hoop sheet 153, and one end of the first hoop sheet 152 is connected to one end of the second hoop sheet 153 by a bolt, so that a second arc-shaped positioning slot 1422 formed between the first hoop sheet 152 and the second hoop sheet 153 has a certain adjustment margin to accommodate capacitors 13 with different sizes.

It should be understood by those skilled in the art that the capacitor 13 can be fixed to the outer wall of the housing 1 by the first hoop 14 or the second hoop 15, which are preferred embodiments of the present application, and those skilled in the art can choose to fix a plurality of capacitors 13 to the outer wall of the housing 1 by different numbers of the first hoop 14 and/or the second hoop 15 in one housing without creative effort, but all of them are within the scope of the present embodiment.

Referring to fig. 5, the fixing member 16 is designed to further improve the stability of the capacitor 13, the fixing member 16 includes a first connecting plate 161 and a second connecting plate 162, the first connecting plate 161 and the second connecting plate 162 are both rectangular plates, the first connecting plate 161 is perpendicularly connected to the second connecting plate 162, the first connecting plate 161 is connected to the outer side wall of the housing 1 through a bolt, a rectangular opening is formed at one end of the second connecting plate 162, which is far away from the first connecting plate 161, a threaded rod 131 is arranged at one end of the capacitor 13, the threaded rod 131 passes through the rectangular opening, a nut is arranged at one side of the threaded rod 131, which is far away from the capacitor 13, a lock washer 132 is arranged between the nut and the second connecting plate 162, and the capacitor 13 is connected to the second connecting plate 162 through the nut. The arrangement of the anti-loose washer 132 can reduce the situation that the nut is loosened due to the vibration of the motor 2 in the working process. The installation of the capacitor 13 is made more stable. The capacitor 13 is stably installed through the cooperation of the first fixing piece and the second fixing piece 16.

With three electric capacity 13 through first staple bolt 14, second staple bolt 15 and the 16 directly fixed in of mounting on the outer wall of shell 1, need not additionally increase electric capacity 13's mounting structure, make overall structure compact, first staple bolt 14,

second staple bolt

15 and 16 settings of mounting make electric capacity 13's installation more stable.

Example two:

referring to fig. 6 and 7, the present embodiment is different from the first embodiment in that: the outer side wall of the shell 1 is fixedly provided with a rectangular insertion box 17, one end of the insertion box 17 is open, two side walls of the insertion box 17 are symmetrically provided with limit holes 171, a mounting groove 1611 is formed in the first connecting plate 161, the mounting groove 1611 faces the one end of the insertion box 17 and is open, a positioning elastic sheet 1612 is fixed in the mounting groove 1611 through bolts, the first connecting plate 161 is inserted in the slot, a through hole 1614 is formed in the side wall, in contact with the side wall, provided with the limit holes 171, of the insertion box 17, of the mounting groove 1611, a limit portion 1613 of the positioning elastic sheet 1612 is exposed outside the mounting groove 1611 through the through hole 1614, when the first connecting plate 161 is located in the insertion box 17, the first connecting plate 161 is fixed inside the insertion box 17 through the cooperation of the limit portion 1613 of the positioning elastic sheet 1612 and the limit holes 171 formed in the side wall of the insertion box 17, and accordingly the fixing piece 16 is fixed on the outer wall of the shell 1.

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

1. The utility model provides an axial-flow fan, includes shell (1), motor (2) and impeller (3), the output shaft of motor (2) with impeller (3) fixed connection, motor (2) and impeller (3) all fixed set up in shell (1), its characterized in that: still include a plurality of electric capacity (13) and be used for with electric capacity (13) are fixed at bottom fixed part, top fixed part and mounting (16) of shell (1) outer wall, bottom fixed part is located between electric capacity (13) and shell (1), and is provided with the parcel first arc constant head tank (1411) of electric capacity (13) lateral wall, top fixed part is located one side that bottom fixed part was kept away from in electric capacity (13), and is provided with the parcel second arc constant head tank (1422) of electric capacity (13) lateral wall, the both ends of bottom fixed part and the both ends of top fixed part are fixed connection respectively, mounting (16) one end is connected electric capacity (13), and the other end is connected the outer wall of shell (1).

2. The axial fan of claim 1, wherein: including first staple bolt (14), staple bolt (14) including constitute first staple bolt (142) on the fixed part of top and constitute the fixed part of bottom first staple bolt (141) down, the both ends of first staple bolt (142) deviate from each other to extend, form with second connecting portion (1421) of the outer wall adaptation of shell (1), the both ends of first staple bolt (141) deviate from each other to extend, form with first connecting portion (1412) of the outer wall adaptation of shell (1), set up the fixed orifices of mutually supporting on first connecting portion (1412) and the second connecting portion (1421), staple bolt (142) and first staple bolt (141) mutually support and form the installation space of electric capacity (13), the shape of installation space with the shape adaptation of electric capacity (13).

3. The axial fan of claim 1, wherein: including second staple bolt (15), staple bolt (151) under second staple bolt (15) including constituting bottom fixed part's second and constitute first armful hoop piece (152) and second armful hoop piece (153) of top fixed part, the both ends of staple bolt (151) deviate from each other and extend under the second, form with third connecting portion (1511) of shell (1) outer wall adaptation, first armful hoop piece (152) one end is extended and is formed fourth connecting portion (1521) with third connecting portion (1511) complex, second armful hoop piece (153) one end is extended and is formed fifth connecting portion (1531) with third connecting portion (1511) complex, and the other end of first armful hoop piece (152) and second armful hoop piece (153) passes through the connecting piece and connects.

4. The axial fan of claim 3, wherein: the connecting piece is a bolt and a nut.

5. The axial fan of claim 1, wherein: the fixing piece (16) comprises a first connecting plate (161) and a second connecting plate (162), the first connecting plate (161) and the second connecting plate (162) are vertically connected, one end, far away from the second connecting plate (162), of the first connecting plate (161) is fixedly connected with the shell (1), and one end, far away from the first connecting plate (161), of the second connecting plate (162) is connected with the capacitor (13) in a matched mode through bolts and nuts.

6. The axial fan of claim 5, wherein: and a check washer (132) is arranged between the nut and the second connecting plate (162).

7. The axial fan of claim 1, wherein: the fixing piece (16) comprises a first connecting plate (161) and a second connecting plate (162), an inserting box (17) is arranged on the outer wall of the shell (1), one end of the inserting box (17) is opened, the side wall of the plug box (17) is symmetrically provided with limiting holes (171), the first connecting plate (161) is vertically connected with the second connecting plate (162), one end of the first connecting plate (161) far away from the second connecting plate (162) is provided with a mounting groove (1611), a positioning elastic sheet (1612) is arranged in the mounting groove (1611), a through hole (1614) corresponding to the limiting hole (171) is arranged on the side wall of the mounting groove (1611), the first connecting plate (161) is inserted into the inserting box (17) through the matching of the positioning elastic sheet (1612), the through hole (1614) and the limiting hole (171), one end, far away from the first connecting plate (161), of the second connecting plate (162) is connected with the capacitor (13).