CN212177202U

CN212177202U - Mining air door

Info

Publication number: CN212177202U
Application number: CN202020548261.8U
Authority: CN
Inventors: 李宏业; 樊少武; 张浪; 李文武; 袁建平; 刘朝阳; 方向群; 李伟生; 胡平; 曹永峰; 召力; 张凯; 石秀; 茹瑞鹏; 屈晓斌; 王星; 钟灵斌; 郭振兴; 毕帅; 王连生
Original assignee: Nuowenke Blower Fan Beijing Co ltd; CCTEG Chongqing Research Institute Co Ltd
Current assignee: Nuowenke Blower Fan Beijing Co ltd; CCTEG Chongqing Research Institute Co Ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-12-18
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses a mining air door relates to mining fan technical field. The blade synchronous rotation device comprises a shell, wherein a plurality of blades are rotatably arranged in the shell, rotating shafts of the blades are parallel to each other, and the blade synchronous rotation device further comprises a driving device and a transmission device enabling the blades to synchronously rotate. The space required for installation and opening of the damper is small compared to the split or shutter style (both rectangular) designs of existing dampers. The existing air door is opened by rotating outwards or opening in a drawing way, and the air door needs to occupy larger external space. Secondly, a shutter type air door is adopted, and the shape of the air door can be set to be circular so as to be used on a circular air duct.

Description

Mining air door

Technical Field

The utility model relates to a mining fan technical field, more specifically say, relate to a mining air door.

Background

At present, air doors produced in the fan industry of China are basically in a split type or a flashboard type (both rectangular) and have larger installation and operation spaces.

Therefore, how to manufacture a damper with a small installation and operation space becomes a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mining air door, required installation, operating space are less.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model provides a mining air door, which comprises an outer shell, rotationally be provided with a plurality of blades in the shell, it is a plurality of the pivot of blade is parallel to each other, still includes drive arrangement and makes the synchronous pivoted transmission of blade.

Optionally, the transmission device is provided as a link mechanism in a parallel four-sided form, the link mechanism includes a driving rod fixedly connected with the rotating shaft of the blade, and a connecting rod is hinged between two adjacent driving rods.

Optionally, the driving device is provided as an electric actuator, and an output shaft of the electric actuator is in transmission connection with a rotating shaft of one of the blades.

Optionally, the number of the blades is odd, the output shaft of the electric actuator is in transmission connection with the rotating shaft of the blade located in the middle, the middle position of the driving rod fixedly connected with the blade is fixedly connected with the rotating shaft of the blade, and the positions at both ends of the driving rod are hinged with the connecting rods.

Optionally, the vanes are provided in three.

Optionally, a first sealing gasket is arranged at the edge of the blade.

Optionally, the blade is provided with a stiffener.

Optionally, a sliding bearing is arranged on the housing, and the vane is rotatably connected with the housing through the matching of the rotating shaft and the sliding bearing.

Optionally, a sleeve matched with the rotating shaft is arranged on the side wall of the shell, one end of the sleeve is fixedly connected with the side wall of the shell, the other end of the sleeve is suspended and provided with a flange, the rotating shaft penetrates through the sleeve, the flange is fixedly connected with a sealing flange, and a sealing gasket is arranged between the flange and the sealing flange.

Optionally, a pointer is fixedly arranged on the rotating shaft of one of the blades, and a dial matched with the pointer is fixedly arranged at the corresponding position of the housing.

The utility model provides a technical scheme can include following beneficial effect: the space required for installation and opening of the damper is small compared to the split or shutter style (both rectangular) designs of existing dampers. The existing air door is opened by rotating outwards or opening in a drawing way, and the air door needs to occupy larger external space. Secondly, a shutter type air door is adopted, and the shape of the air door can be set to be circular so as to be used on a circular air duct.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of a mining damper shown in some embodiments;

FIG. 2 is a schematic illustration of the transmission of a mine damper in some embodiments;

FIG. 3 is a schematic structural view of a vane of a mining damper shown in some embodiments;

FIG. 4 is a schematic structural view of an outer shell of a mining damper shown in some embodiments;

FIG. 5 is a schematic illustration of a linkage mechanism for a mine damper in accordance with certain embodiments.

In the figure: 1. a housing; 2. a blade; 3. an electric actuator; 11. a sliding bearing; 12. a sleeve; 13. a first flange; 14. a fixed mount; 21. a rotating shaft; 22. reinforcing ribs; 23. a connecting pipe; 24. reaming the hole; 25. a first gasket; 41. a drive rod; 42. a connecting rod; 51. a pointer; 52. a dial plate.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus or methods consistent with certain aspects of the present invention.

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-5, the utility model provides a mining air door, including shell 1, rotationally be provided with a plurality of blades 2 in the shell 1, the pivot 21 of a plurality of blades 2 is parallel to each other, still includes drive arrangement and makes the synchronous pivoted transmission of blade 2. So arranged, the vanes 2 are disposed like shutters within the housing 1, requiring less space for installation and operation of the damper than in the prior art damper of either a split or shutter style (both rectangular) configuration. The existing air door is opened by rotating outwards or opening in a drawing way, and the air door needs to occupy larger external space. Secondly, with a louvered damper, the housing 1 may be configured to be round in shape for use on a round air duct.

Wherein the transmission means may be provided as a belt transmission means, a gear transmission means or a link mechanism.

As shown in fig. 2, the transmission device adopts a link mechanism, the link mechanism includes a driving rod 41 and a link 42, one end of the driving rod 41 is fixedly connected with the rotating shaft 21, the other end is hinged with the link 42, each rotating shaft 21 is fixedly connected with the driving rod 41, and the link 42 is hinged between two adjacent driving rods 41 to form a link mechanism in a parallel four-sided form, so that the blades 2 rotate at the same angular speed to complete the opening and closing of the mining damper. And the connecting rod mechanism is adopted, so that the structure is simple and the manufacturing cost is low.

Specifically, the driving device may be configured as an electric actuator 3, and an output shaft of the electric actuator 3 is in transmission connection with the rotating shaft 21 of one of the blades 2. The electric actuator 3 is a power device which can output a certain torque and can be set with any rotation angle in the prior art. The rotation angle of the blade 2 can be accurately controlled by using the electric actuator 3, so that the opening degree of the damper can be more accurately controlled.

Wherein, the blades 2 can be set to be an odd number, and the blades 2 are distributed symmetrically, and comprise a middle blade 2 and blades 2 positioned at two sides of the middle blade 2. The output shaft of the electric actuator 3 is in transmission connection with the rotating shaft 21 of the middle blade 2, the middle position of the driving rod 41 fixedly connected with the rotating shaft 21 of the middle blade 2 is fixedly connected with the rotating shaft 21, the two end positions are provided with hinged points and are respectively hinged with a connecting rod 42, the driving rods 41 of the blades 2 at the two sides are both fixedly connected with the rotating shaft 21 corresponding to one end, and the other end is hinged with the connecting rod 42. Specifically, the number of the blades 2 may be set to three. Fig. 2 is a schematic view of a link mechanism in which the number of blades 2 is three, and fig. 5 is a schematic view of a link mechanism in which the number of blades 2 is plural. In this way, the force of the electric actuator 3 can be more uniformly transmitted to each driving rod 41, and the opening of the vanes 2 is more smooth.

The edge of the blade 2 can be provided with a first sealing gasket 25, so that the tightness of the mining air door can be improved.

The blade 2 may be provided with a rib 22, the extending direction of the rib 22 is perpendicular to the extending direction of the rotating shaft 21, and the dimension of the rib is gradually reduced from the rotating shaft 21 to both sides. The addition of the ribs 22 increases the rigidity of the blade 2 and, arranged in the vertical direction, suitably reduces the wind resistance caused by them.

The housing 1 can be connected to the blade 2 for rotation therewith by the provision of a plain bearing 11. Specifically, the sliding bearing 11 is fixed by the fixing frames 14 located at both sides of the housing 1, the two ends of the blade 2 are provided with the connecting pipes 23, the rotating shaft 21 and the connecting pipes 23 are both provided with the hinge holes 24, a part of the rotating shaft 21 extends into the connecting pipes 23, and the rotating shaft 21 is fixedly connected with the blade 2 by bolts for the hinge holes. The sliding bearing 11 can bear larger radial force, and the service life of the bearing is prolonged.

The side walls of the two sides of the shell 1 can be also provided with a sleeve 12, one end of the sleeve 12 is provided with a flange, the other end of the sleeve 12 is fixedly connected with the shell 1, and the sleeve can be fixed with the shell 1 through welding or other modes. The rotating shaft 21 passes through the sleeve 12, and one end of the rotating shaft is fixedly connected with the blade 2 positioned at the inner side of the shell 1, and the other end of the rotating shaft is connected with the sliding bearing 11 positioned at the outer side of the shell 1 in a matching way. The inner diameter of the sleeve 12 is slightly larger than the outer diameter of the rotating shaft 21, the flange end of the sleeve 12 is fixedly connected with a sealing flange, and a sealing gasket is arranged between the flange end and the sealing flange, so that wind in the wind channel can be prevented from flowing out of the side wall of the shell 1 through a gap between the rotating shaft 21 and the sleeve 12. Meanwhile, the sleeve 12 can temporarily support the rotating shaft 21 when the rotating shaft 21 is bent by a large wind force, so that the pressure on the sliding bearing 11 is reduced.

The rotating shaft 21 of one of the blades 2 may further be fixedly provided with a pointer 51, and particularly may be arranged on the rotating shaft 21 of the blade 2 located at the side. The housing 1 is fixedly provided with a dial 52 matching the pointer 51 at a corresponding position. The opening and closing size of the damper can be determined by observing the reading of the pointer 51.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The mining air door is characterized by comprising a shell (1), wherein a plurality of blades (2) are rotatably arranged in the shell (1), a plurality of rotating shafts (21) of the blades (2) are parallel to each other, and the mining air door further comprises a driving device and a transmission device enabling the blades (2) to synchronously rotate.

2. A mining damper according to claim 1, characterized in that the transmission is provided as a link mechanism in the form of parallel four sides, the link mechanism comprising a drive rod (41) fixedly connected to the rotary shaft (21) of the vane (2), a link (42) being articulated between two adjacent drive rods (41).

3. A mining damper according to claim 2, characterised in that the drive means is provided as an electric actuator (3), the output shaft of the electric actuator (3) being in driving connection with the rotary shaft (21) of one of the vanes (2).

4. The mining damper according to claim 3, characterized in that the number of the blades (2) is odd, the output shaft of the electric actuator (3) is in transmission connection with the rotating shaft (21) of the blade (2) in the middle, the middle position of a driving rod (41) fixedly connected with the blade (2) is fixedly connected with the rotating shaft (21) of the blade (2), and the positions at both ends of the driving rod (41) are respectively hinged with the connecting rod (42).

5. A mining damper according to claim 4, characterised in that the vanes (2) are arranged in three.

6. A mining damper according to claim 1, characterised in that a first gasket (25) is provided at the edge of the vane (2).

7. A mining damper according to claim 1, characterised in that the vane (2) is provided with a stiffener (22).

8. A mining damper according to claim 1, characterised in that a slide bearing (11) is provided on the housing (1), the vane (2) being rotatably connected to the housing (1) by engagement of a shaft (21) with the slide bearing (11).

9. The mining air door according to claim 8, characterized in that a sleeve (12) matched with the rotating shaft (21) is arranged on the side wall of the shell (1), one end of the sleeve (12) is fixedly connected with the side wall of the shell (1), the other end of the sleeve is suspended and provided with a flange, the rotating shaft (21) penetrates through the sleeve (12), the flange is fixedly connected with a sealing flange, and a sealing gasket is arranged between the flange and the sealing flange.

10. The mining damper according to claim 1, characterized in that a pointer (51) is fixedly arranged on the rotating shaft (21) of one of the vanes (2), and a dial (52) matched with the pointer (51) is fixedly arranged on the housing (1) at a corresponding position.