Impeller structure of axial flow fan

Abstract

The impeller structure of the axial flow fan comprises a fan frame structure, an installation disc structure, a blade structure and an auxiliary telescopic device, the installation disc structure is fixedly installed on the surface of one end of the fan frame structure, and the blade structure is fixedly installed on the surface of the installation disc structure. According to the impeller structure of the axial flow fan, the installation disc structure is arranged so that the rotation shaft clamping block and the threaded column of the fan frame structure can be in butt joint conveniently, meanwhile, the installation disc structure is fixedly connected with the blade structure, the rotation shaft clamping block and the threaded column of the fan frame structure can be in butt joint conveniently, and the installation disc structure is convenient to install and disassemble. And the blade structure can rotate by connecting the rotating ring, the angle of the blade structure can be conveniently adjusted by arranging the auxiliary telescopic device, synchronous adjustment can be conducted, the blade adjusting angles of the blade structure can be kept consistent, a small telescopic rod is remotely started to stretch out and draw back during adjustment, and therefore the angle of the fan blade is changed.

Description

Technical Field

[0001] The utility model relates to the field of fans, and particularly relates to an impeller structure of an axial flow fan. Background Technique

[0002] An axial flow fan, also called a local ventilator, is a commonly used fan in industrial and mining enterprises for local ventilation. In an axial flow fan, the air flow is in the same direction as the axis of the fan blades. For example, electric fans and the fans of air conditioner outdoor units operate in the axial flow mode. Most of the impellers of existing ventilators are of fixed structures and cannot be adjusted. For some blades that can be adjusted, manual angle adjustment can only be carried out after the equipment is shut down, which greatly reduces the practicability of the equipment. Moreover, the blades of the impeller need to be adjusted one by one, and it is impossible to ensure that the adjusted angles are consistent, thus affecting the use effect of the fan. Therefore, an impeller structure of an axial flow fan is provided. Content of the Utility Model

[0003] The main purpose of the utility model is to provide an impeller structure of an axial flow fan, which can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] An impeller structure of an axial flow fan includes a fan frame structure, a mounting disc structure, a blade structure and an auxiliary telescopic device. One end surface of the fan frame structure is fixedly installed with a mounting disc structure. The surface of the mounting disc structure is fixedly installed with a blade structure. The surface of the fan frame structure is fixedly sleeved with an auxiliary telescopic device. One end surface of the fan frame structure is screwed with a fixing cover.

[0006] Preferably, the fan frame structure includes a protective outer frame, a fixing frame, a sleeve ring, a motor, a rotating shaft block and a threaded column. The inner surface of the protective outer frame is fixedly connected with a fixing frame. One end surface of the fixing frame is fixedly connected with a sleeve ring. The surface of the sleeve ring is fixedly sleeved with a motor. The output end surface of the motor is fixedly provided with a rotating shaft block. The surface of the rotating shaft block is fixedly connected with a threaded column.

[0007] Preferably, the mounting disc structure includes a fixing disc, a docking head, a connecting rotating ring, a limiting card slot and a through hole. The arc surface of the fixing disc is fixedly provided with a docking head. The surface of the docking head is movably connected with a connecting rotating ring. The surface of the fixing disc is fixedly provided with a limiting card slot. The surface of the fixing disc is fixedly provided with a through hole.

[0008] Preferably, the blade structure includes a fan blade, a connecting column, a fixing plate, a docking block and a fixing nut. A connecting column is fixedly arranged on the surface of the fan blade. One end surface of the fan blade is fixedly provided with a fixing plate. One end surface of the fixing plate is fixedly provided with a docking block. The fixing nut is movably inserted through the surface of the fixing plate.

[0009] Preferably, the auxiliary telescopic device includes a clamping groove ring, a rotating bearing, a connecting rod, a small telescopic rod and a mounting head. The rotating bearing is movably sleeved on the surface of the clamping groove ring. The arc surface of the rotating bearing is fixedly connected with a connecting rod. One end surface of the connecting rod is fixedly connected with a small telescopic rod. One end surface of the small telescopic rod is fixedly provided with a mounting head.

[0010] Preferably, the rotating shaft block of the fan frame structure is docked and fixed with the limiting clamping groove. The threaded column is movably inserted into the through hole. The docking block of the blade structure is docked and fixed with the docking head. The fixing nut connects the fixing plate and the docking head. The clamping groove ring of the auxiliary telescopic device is fixedly sleeved on the surface of the rotating shaft block.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] In the present utility model, an impeller structure of an axial flow fan, by setting the mounting disc structure, it is convenient to dock the rotating shaft block and the threaded column of the fan frame structure, and at the same time is fixedly connected with the blade structure. And the blade structure can be rotated by connecting the rotating ring. The docking head is movably sleeved with the connecting rotating ring. The docking block of the blade structure is inserted into the central position of the connecting rotating ring. When in use, the fixing nut passes through the fixing plate and is connected with the connecting rotating ring. After connection, the blade structure can rotate through the connection part of the connecting rotating ring and the docking head. By setting the auxiliary telescopic device, it is convenient to adjust the angle of the blade structure and can be adjusted synchronously to keep the adjusted angles of the blades consistent. The auxiliary telescopic device is sleeved on the surface of the rotating shaft block through the clamping groove ring, and then docks with the mounting disc structure. The mounting head is movably connected with the connecting column. When adjusting, the small telescopic rod is remotely controlled to expand and contract, so as to change the angle of the fan blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of an impeller structure of an axial flow fan of the present utility model;

[0014] Figure 2 It is an overall back schematic diagram of an impeller structure of an axial flow fan of the present utility model;

[0015] Figure 3 It is a front schematic diagram of a fan frame structure of an impeller structure of an axial flow fan of the present utility model;

[0016] Figure 4Schematic diagram of the back of the fan frame structure of the impeller structure of an axial flow fan of the present utility model;

[0017] Figure 5 Schematic diagram of the back of the mounting disc structure of the impeller structure of an axial flow fan of the present utility model;

[0018] Figure 6 Schematic diagram of the front of the mounting disc structure of the impeller structure of an axial flow fan of the present utility model;

[0019] Figure 7 Schematic diagram of the back of the blade structure of the impeller structure of an axial flow fan of the present utility model;

[0020] Figure 8 Schematic diagram of the front of the blade structure of the impeller structure of an axial flow fan of the present utility model;

[0021] Figure 9 Schematic diagram of the front of the auxiliary telescopic device of the impeller structure of an axial flow fan of the present utility model;

[0022] Figure 10 Schematic diagram of the back of the auxiliary telescopic device of the impeller structure of an axial flow fan of the present utility model;

[0023] Figure 11 Schematic diagram of the front and back of the blade of the impeller structure of an axial flow fan of the present utility model;

[0024] In the figure: 1. Fan frame structure; 101. Protective outer frame; 102. Fixed frame; 103. Sleeve ring; 104. Motor; 105. Rotating shaft chuck; 106. Threaded column; 2. Mounting disc structure; 201. Fixed disc; 202. Docking head; 203. Connecting rotating ring; 204. Limiting card slot; 205. Passing hole; 3. Blade structure; 301. Fan blade; 302. Connecting column; 303. Fixed plate; 304. Docking block; 305. Fixed nut; 4. Auxiliary telescopic device; 401. Card slot ring; 402. Rotating bearing; 403. Connecting rod; 404. Small telescopic rod; 405. Mounting head; 5. Fixed cover. Detailed implementation manners

[0025] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the detailed implementation manners.

[0026] Such as Figures 1-11As shown in the figure, an impeller structure of an axial flow fan includes a fan frame structure 1, a mounting disc structure 2, a blade structure 3, and an auxiliary telescopic device 4. One end surface of the fan frame structure 1 is fixedly installed with the mounting disc structure 2. The surface of the mounting disc structure 2 is fixedly installed with the blade structure 3. The surface of the fan frame structure 1 is fixedly sleeved with the auxiliary telescopic device 4. One end surface of the fan frame structure 1 is spirally connected with a fixed cover 5;

[0027] The fan frame structure 1 includes a protective outer frame 101, a fixing frame 102, a sleeve ring 103, a motor 104, a rotating shaft block 105, and a threaded column 106. The inner surface of the protective outer frame 101 is fixedly connected with the fixing frame 102. One end surface of the fixing frame 102 is fixedly connected with the sleeve ring 103. The surface of the sleeve ring 103 is fixedly sleeved with the motor 104. The output end surface of the motor 104 is fixedly provided with the rotating shaft block 105. The surface of the rotating shaft block 105 is fixedly connected with the threaded column 106. The mounting disc structure 2 includes a fixed disc 201, a docking head 202, a connecting rotating ring 203, a limiting card slot 204, and a through hole 205. The arc surface of the fixed disc 201 is fixedly provided with the docking head 202. The surface of the docking head 202 is movably connected with the connecting rotating ring 203. The surface of the fixed disc 201 is fixedly provided with the limiting card slot 204. The surface of the fixed disc 201 is fixedly provided with the through hole 205. The blade structure 3 includes a fan blade 301, a connecting column 302, a fixing plate 303, a docking block 304, and a fixing nut 305. The surface of the fan blade 301 is fixedly provided with the connecting column 302. One end surface of the fan blade 301 is fixedly provided with the fixing plate 303. One end surface of the fixing plate 303 is fixedly provided with the docking block 304. The surface of the fixing plate 303 is movably penetrated with the fixing nut 305. The auxiliary telescopic device 4 includes a card slot ring 401, a rotating bearing 402, a connecting rod 403, a small telescopic rod 404, and a mounting head 405. The surface of the card slot ring 401 is movably sleeved with the rotating bearing 402. The arc surface of the rotating bearing 402 is fixedly connected with the connecting rod 403. One end surface of the connecting rod 403 is fixedly connected with the small telescopic rod 404. One end surface of the small telescopic rod 404 is fixedly provided with the mounting head 405. The rotating shaft block 105 of the fan frame structure 1 is docked and fixed with the limiting card slot 204. The threaded column 106 is movably inserted into the through hole 205. The docking block 304 of the blade structure 3 is docked and fixed with the docking head 202. The fixing nut 305 connects the fixing plate 303 and the docking head 202. The card slot ring 401 of the auxiliary telescopic device 4 is fixedly sleeved on the surface of the rotating shaft block 105.

[0028] It should be noted that the present utility model is an impeller structure of an axial flow fan. It can conveniently dock with the rotating shaft block 105 and the threaded column 106 of the fan frame structure 1 through the mounting disc structure 2, and is fixedly connected to the blade structure 3 at the same time. And the blade structure 3 can be rotated by connecting the rotating ring 203. The connecting head 202 is movably sleeved with the connecting rotating ring 203. The docking block 304 of the blade structure 3 is inserted into the central position of the connecting rotating ring 203, and then the fixing nut 305 is used to pass through the fixing plate 303 and connect with the connecting rotating ring 203. After connection, the blade structure 3 can rotate through the connection between the connecting rotating ring 203 and the connecting head 202. The auxiliary telescopic device 4 is convenient for adjusting the angle of the blade structure 3 and can be adjusted synchronously so that the adjustment angles of the fan blades 301 are kept consistent. The auxiliary telescopic device 4 is sleeved on the surface of the rotating shaft block 105 through the card slot ring 401, and then the mounting disc structure 2 is docked. The mounting head 405 is movably connected to the connecting column 302. When adjusting, the small telescopic rod 404 is remotely activated to expand and contract, thereby changing the angle of the fan blade 301. The synchronous expansion and contraction of the small telescopic rods 404 ensures that the adjustment angles are the same.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An impeller structure of an axial flow fan, characterized in that: The invention comprises a fan frame structure (1), a mounting plate structure (2), a blade structure (3) and an auxiliary telescopic device (4); the mounting plate structure (2) is fixedly mounted on one end surface of the fan frame structure (1); the blade structure (3) is fixedly mounted on the surface of the mounting plate structure (2); the auxiliary telescopic device (4) is fixedly sleeved on the surface of the fan frame structure (1); and a fixing cover (5) is spirally connected to one end surface of the fan frame structure (1).

2. The impeller structure of an axial flow fan according to claim 1, wherein: The wind turbine frame structure (1) comprises a protective outer frame (101), a fixing frame (102), a sleeve ring (103), a motor (104), a rotating shaft block (105) and a threaded column (106); the inner surface of the protective outer frame (101) is fixedly connected to the fixing frame (102); the sleeve ring (103) is fixedly connected to the surface of one end of the fixing frame (102); the motor (104) is fixedly sleeved on the surface of the sleeve ring (103); the rotating shaft block (105) is fixedly provided on the surface of the output end of the motor (104); and the surface of the rotating shaft block (105) is fixedly connected to the threaded column (106).

3. The impeller structure of an axial flow fan according to claim 2, characterized in that: The mounting plate structure (2) comprises a fixed plate (201), a docking head (202), a connecting rotating ring (203), a limiting slot (204) and a through hole (205); the fixed plate (201) has a docking head (202) fixedly arranged on its arc-shaped surface; the connecting rotating ring (203) is movably connected to the surface of the docking head (202); the fixed plate (201) has a limiting slot (204) fixedly provided on its surface; and the fixed plate (201) has a through hole (205) fixedly provided on its surface.

4. The impeller structure of an axial flow fan according to claim 3, characterized in that: The blade structure (3) comprises a fan blade (301), a connecting column (302), a fixing plate (303), a docking block (304) and a fixing nut (305); the connecting column (302) is fixedly arranged on the surface of the fan blade (301); the fixing plate (303) is fixedly arranged on one end surface of the fan blade (301); the docking block (304) is fixedly arranged on one end surface of the fixing plate (303); and the fixing nut (305) is movably penetrated on the surface of the fixing plate (303).

5. The impeller structure of an axial flow fan according to claim 4, characterized in that: The auxiliary telescopic device (4) comprises a slot ring (401), a rotating bearing (402), a connecting rod (403), a small telescopic rod (404) and a mounting head (405); the rotating bearing (402) is movably sleeved on the surface of the slot ring (401); the arcuate surface of the rotating bearing (402) is fixedly connected to the connecting rod (403); one end surface of the connecting rod (403) is fixedly connected to the small telescopic rod (404); and one end surface of the small telescopic rod (404) is fixedly provided with the mounting head (405).

6. The impeller structure of an axial flow fan according to claim 5, characterized in that: The rotating shaft clamping block (105) of the fan frame structure (1) is butt-jointed and fixed with the limiting card slot (204), the threaded column (106) is movably inserted into the through hole (205), the docking block (304) of the blade structure (3) is butt-jointed and fixed with the docking head (202), the fixing nut (305) connects the fixing plate (303) and the docking head (202), and the card slot ring (401) of the auxiliary telescopic device (4) is fixedly sleeved on the surface of the rotating shaft clamping block (105).

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