Split type centrifugal fan impeller

Abstract

The utility model discloses a split type centrifugal fan impeller which comprises a main body frame unit, the main body frame unit comprises a first supporting plate and a plurality of fan blades which are connected to the first supporting plate in a rotating mode and evenly distributed in a circumferential mode, and the end, away from the first supporting plate, of each fan blade is connected with a second supporting plate in a rotating mode. The first supporting plate is matched with the second supporting plate in diameter, and a threaded rod is slidably mounted in the center of the side wall of the side, close to the fan blades, of the first supporting plate. The fixing and adjusting unit comprises a first rotating rod slidably connected to the center of the first supporting plate, the position of the arc-shaped opening is matched with the position of the fan blade, the fixing rod is fixedly connected with a fixing ring, the second supporting plate is fixedly connected with a second fixing plate, the fixing ring is provided with an opening, and the second fixing plate is fixedly connected to the opening. According to the centrifugal fan, the angles of the fan blades are adjusted so that the angles of the fan blades can be turned over, reverse blowing can be achieved, and then a filter screen on the centrifugal fan can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of split-type centrifugal fans, in particular to an impeller of a split-type centrifugal fan. Background Art

[0002] In recent years, with the advancement of industrial technology and the development of the market, the consideration of equipment reliability and maintenance costs in industrial and commercial applications, and the continuous improvement of market requirements for energy conservation, environmental protection and equipment reliability, have prompted fan manufacturers to pay more attention to how to reduce maintenance costs and extend equipment life during the design stage. The impeller of the split centrifugal fan works in an environment with a large amount of dust and particulate matter. As a widely used air conveying equipment, the energy efficiency and environmental protection performance of centrifugal fans have gradually become the focus of users and regulators. The addition of dustproof function can effectively extend the life of the equipment. Dustproof design has become an important direction of technological innovation.

[0003] At present, traditional centrifugal fans are easily affected by pollutants such as dust and particulate matter during use. These pollutants may cause dust to accumulate on the impeller surface, reduce the efficiency and performance of the fan, and even damage the impeller. In dusty environments with high dust content in the air, dust and particulate matter accumulate on the impeller and air inlet of the centrifugal fan, resulting in reduced equipment performance or even failure. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing split centrifugal fan impeller, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a split centrifugal fan impeller, which is suitable for solving the problem of dust and particulate matter accumulation in the impeller and air inlet of the centrifugal fan.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a split centrifugal fan impeller, comprising:

[0008] The main frame unit includes a first support plate and a plurality of circumferentially evenly distributed fan blades rotatably connected to the first support plate, each of the fan blades is rotatably connected to a second support plate at one end away from the first support plate, a fixing cylinder is fixedly connected to the center of the second support plate, a plurality of mounting holes are fixedly opened on the side wall of the first support plate close to the fan blade, and a threaded rod is slidably installed on the center of the side wall of the first support plate close to the fan blade;

[0009] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip.

[0010] As a preferred solution of the split centrifugal fan impeller described in the utility model, a circular opening is fixedly opened at the center of the second support plate, and the diameter of the circular opening matches the diameter of the outer wall of the fixed cylinder.

[0011] As a preferred solution of the split centrifugal fan impeller described in the utility model, the width of each arc-shaped opening is greater than the diameter of the fixed rod, and the position of the arc-shaped opening matches the position of the fan blade.

[0012] As a preferred solution of the split centrifugal fan impeller described in the utility model, the fixing ring has an opening, and the second fixing plate is fixedly connected to the opening.

[0013] As a preferred solution of the split centrifugal fan impeller described in the utility model, wherein: the diameters of the first support plate and the second support plate match, and the first support plate and the second support plate are both made of steel plates.

[0014] As a preferred solution of the split-type centrifugal fan impeller described in the utility model, a circular opening is fixedly opened at the center of the first support plate, and the diameter of the circular opening is smaller than the diameter of the threaded rod.

[0015] The beneficial effects of the present utility model are as follows: when a split centrifugal fan impeller is in use, the staff fixes the output shaft of the driving motor with the rotating rod, and then rotates the mounting plate and the first fixed plate, and then the staff rotates the fixing screw into the fixing screw hole to fix the centrifugal fan impeller. When the staff needs to adjust the angle of the fan blades, the hydraulic telescopic rod is started, and the upper end of the hydraulic telescopic rod moves, so that the fixed rod connected to the upper end of the hydraulic telescopic rod is moved, and the connecting rod and the second rotating rod connected to the rotation on the fixed ring are rotated, so that the fixed ring is rotated, and the fixed rod is moved, so that the angle of the fan blades can be adjusted, and the angle of the fan blades can be flipped to achieve reverse blowing, and then the filter on the centrifugal fan can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of a split centrifugal fan impeller proposed in the utility model;

[0018] Figure 2 This is a side view structural diagram of a split centrifugal fan impeller proposed in the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of a split centrifugal fan impeller proposed in the utility model.

[0020] Description of the drawings: 100 main frame unit, 101 first support plate, 102 fan blades, 103 second support plate, 104 fixed cylinder, 105 mounting hole, 106 threaded rod, 200 fixed adjustment unit, 201 first rotating rod, 202 mounting plate, 203 first fixed plate, 204 fixed screw hole, 205 fixed rod, 206 fixed ring, 207 second rotating rod, 208 connecting rod, 209 second fixed plate, 210 hydraulic telescopic rod. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0025] Reference Figure 1 - Figure 3 , which is an embodiment of the present utility model, provides a split centrifugal fan impeller, including a main frame unit 100 and a fixed adjustment unit 200.

[0026] The main frame unit 100 includes a first support plate 101 and a plurality of circumferentially evenly distributed fan blades 102 rotatably connected to the first support plate 101, and each fan blade 102 is rotatably connected to a second support plate 103 at one end away from the first support plate 101. The diameters of the first support plate 101 and the second support plate 103 match. The first support plate 101 and the second support plate 103 are both made of steel plates. A fixing cylinder 104 is fixedly connected to the center of the second support plate 103, and a circular opening is fixedly opened at the center of the second support plate 103. The diameter of the circular opening matches the diameter of the outer wall of the fixing cylinder 104. A plurality of mounting holes 105 are fixedly opened on the side wall of the first support plate 101 close to the fan blade 102. A threaded rod 106 is slidably installed on the center of the side wall of the first support plate 101 close to the fan blade 102. A circular opening is fixedly opened at the center of the first support plate 101, and the diameter of the circular opening is smaller than the diameter of the threaded rod 106.

[0027] The fixed adjustment unit 200 includes a first rotating rod 201 slidably connected to the center of the first support plate 101, the upper end of the first rotating rod 201 is fixedly connected to the bottom of the threaded rod 106, the end of the threaded rod 106 close to the first rotating rod 201 is threadedly connected to the mounting plate 202, the end of the threaded rod 106 close to the mounting plate 202 is threadedly connected to the first fixing plate 203, the end of the threaded rod 106 away from the first fixing plate 203 is fixedly provided with a fixing screw hole 204, the second support plate 103 is fixedly provided with a plurality of arc-shaped openings evenly distributed around the circumference, and the upper end of each fan blade 102 away from the first support plate 101 is fixedly connected to a fixing rod 205, and the width of each arc-shaped opening is greater than the diameter of the fixing rod 205;

[0028] The position of the arc-shaped opening matches the position of the fan blade 102. A fixing ring 206 is fixedly connected to the fixing rod 205. A plurality of second rotating rods 207 uniformly distributed in a circle are rotatably connected near the center of the second support plate 103. The upper end of each second rotating rod 207 is rotatably connected to a connecting rod 208. The end of the connecting rod 208 away from the rotating rod is rotatably connected to the fixing ring 206. A second fixing plate 209 is fixedly connected to the second support plate 103. The fixing ring 206 has an opening. The second fixing plate 209 is fixedly connected to the opening. A hydraulic telescopic rod 210 is fixedly installed on the second fixing plate 209. The upper end of the hydraulic telescopic rod 210 is fixedly connected to the side wall of the fixing rod 205.

[0029] During use, when a split centrifugal fan impeller is in use, the staff fixes the drive motor output shaft to the rotating rod, then rotates the mounting plate 202 and the first fixing plate 203, and then the staff rotates the fixing screw into the fixing screw hole 204 to fix the centrifugal fan impeller. When the staff needs to adjust the angle of the fan blade 102, the hydraulic telescopic rod 210 is started, and the upper end of the hydraulic telescopic rod 210 moves, so that the fixing rod 205 connected to the upper end of the hydraulic telescopic rod 210 is moved, and the connecting rod 208 and the second rotating rod 207 connected to the rotating ring 206 are rotated, so that the fixing ring 206 is rotated, and the fixing rod 205 is moved, so that the angle of the fan blade 102 can be adjusted. By flipping the angle of the fan blade 102, reverse blowing can be achieved, and then the filter on the centrifugal fan can be cleaned.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A split centrifugal fan impeller, characterized in that: include: A main frame unit (100) comprises a first support plate (101) and a plurality of circumferentially evenly distributed fan blades (102) rotatably connected to the first support plate (101); each of the fan blades (102) is rotatably connected to a second support plate (103) at one end away from the first support plate (101); a fixing cylinder (104) is fixedly connected at the center of the second support plate (103); a plurality of mounting holes (105) are fixedly opened on a side wall of the first support plate (101) close to the fan blades (102); and a threaded rod (106) is slidably mounted on the center of the side wall of the first support plate (101) close to the fan blades (102); The fixed adjustment unit (200) comprises a first rotating rod (201) slidably connected to the center of the first support plate (101), the upper end of the first rotating rod (201) is fixedly connected to the bottom of the threaded rod (106), the threaded end of the threaded rod (106) close to the first rotating rod (201) is threadedly connected to the mounting plate (202), the threaded end of the threaded rod (106) close to the mounting plate (202) is threadedly connected to the first fixed plate (203), the threaded end of the threaded rod (106) away from the first fixed plate (203) is fixedly provided with a fixing screw hole (204), the second support plate (103) is fixedly provided with a plurality of arc-shaped openings evenly distributed on the circumference, and each of the fan blades (102) away from the first support plate The upper end of one side (101) is fixedly connected to a fixed rod (205), and a fixed ring (206) is fixedly connected to the fixed rod (205). A plurality of second rotating rods (207) uniformly distributed in a circumference are rotatably connected near the center of the second support plate (103). The upper end of each second rotating rod (207) is rotatably connected to a connecting rod (208), and the end of the connecting rod (208) away from the rotating rod is rotatably connected to the fixed ring (206). The second support plate (103) is fixedly connected to a second fixed plate (209), and a hydraulic telescopic rod (210) is fixedly installed on the second fixed plate (209). The upper end of the hydraulic telescopic rod (210) is fixedly connected to the side wall of the fixed rod (205).

2. A split centrifugal fan impeller according to claim 1, characterized in that: A circular opening is fixedly opened at the center of the second support plate (103), and the diameter of the circular opening matches the diameter of the outer wall of the fixed cylinder (104).

3. The split centrifugal fan impeller according to claim 1, characterized in that: The width of each arc-shaped opening is greater than the diameter of the fixing rod (205), and the position of the arc-shaped opening matches the position of the fan blade (102).

4. The split centrifugal fan impeller according to claim 1, characterized in that: The fixing ring (206) has an opening, and the second fixing plate (209) is fixedly connected to the opening.

5. The split centrifugal fan impeller according to claim 1, characterized in that: The diameters of the first support plate (101) and the second support plate (103) match each other, and both the first support plate (101) and the second support plate (103) are made of steel plates.

6. The split centrifugal fan impeller according to claim 1, characterized in that: A circular opening is fixedly provided at the center of the first support plate (101), and the diameter of the circular opening is smaller than the diameter of the threaded rod (106).

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