Axial flow fan blade installation auxiliary tool

Abstract

The utility model discloses an auxiliary tool for mounting blades of an axial flow fan. The auxiliary tool comprises a positioning ring, a plurality of positioning bolts and a plurality of positioning bolts, the multiple positioning blocks are arranged on the outer side of the positioning ring, the inclination angles of the positioning blocks are matched with the angles of the blades, and the positioning blocks are used for being clamped between the blades to be fixed; the positioning ring is arranged on the base, the positioning bolts are arranged on the positioning ring, the adjusting assembly is arranged on the outer side of the positioning ring, the adjusting assembly comprises a vertical plate arranged on the top of the positioning ring, and the blade fixing device has the advantages that the positioning ring and the multiple positioning bolts are used in a matched mode, so that the blade can be accurately fixed to the preset position; due to the arrangement of the horizontal plane and the scale marks on the positioning bolt, an operator can accurately judge the length of the part, entering the positioning ring, of the positioning bolt, so that the blade mounting accuracy and stability are ensured; through the cooperation of the vertical plate, the upper positioning rod and the lower positioning rod, the distance and the height between the blades and the motor shaft can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fans, in particular to an auxiliary tool for installing blades of an axial flow fan. Background Art

[0002] An axial flow fan, also known as an axial-flow fan, is a type of fan in which the gas flows parallel to the fan axis. Common application examples include electric fans and air conditioner outdoor fans. An axial flow fan is mainly composed of an impeller, a casing, an electric motor and other components. When the impeller rotates, the gas enters the impeller axially from the air inlet, is pushed by the blades on the impeller, and its energy increases, and then flows into the guide vanes. The guide vanes deflect the direction of the airflow to axial flow, and at the same time guide the gas into the diffuser, further converting the kinetic energy of the gas into pressure energy, and finally introducing it into the working pipeline. The working method of the axial flow fan blades is similar to that of an airplane wing, but the position is fixed and it moves the air.

[0003] Blade installation is a critical step in the axial fan manufacturing process. Currently, many companies still rely on manual installation, requiring manual alignment of the blades with the installation location before tightening them with an electric screwdriver. This lack of assistance during installation prevents the blades from being positioned precisely within the housing, limiting production efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide an auxiliary tool for installing axial flow fan blades to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an auxiliary tool for installing blades of an axial flow fan, comprising:

[0006] A locating ring with multiple locating bolts equidistantly arranged on the outside;

[0007] Positioning blocks, which are provided in plurality and are placed outside the positioning ring. The inclination angle of the positioning blocks matches the angle of the blades and are used to be clamped between the blades and fixed;

[0008] The adjustment component is placed on the outside of the positioning ring. The adjustment component includes a vertical plate placed on the top of the positioning ring. The outer side of the vertical plate is adjustably installed with an upper positioning rod and a lower positioning rod for clamping and positioning.

[0009] Preferably, a horizontal plate is fixedly connected to one side of the positioning ring, the vertical plate is an L-shaped structure, and the bottom of the vertical plate is slidably mounted on the top of the horizontal plate.

[0010] Preferably, the outer side of the horizontal plate is slidably connected to a connecting sleeve, the bottom of the vertical plate is slidably installed in the connecting sleeve, and the top of the connecting sleeve is threadedly connected to a fastening bolt for fixing the vertical plate.

[0011] Preferably, one end of the upper positioning rod is fixedly connected to an upper sliding sleeve, and the outer side of the upper sliding sleeve is threadedly connected to a fastening screw.

[0012] Preferably, a lower sliding sleeve is fixedly connected to one side of the lower positioning rod, and a screw is threadedly connected to one side of the lower sliding sleeve.

[0013] Preferably, the upper sliding sleeve and the lower sliding sleeve are both slidingly mounted on the outer side of the vertical plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the blades can be accurately fixed in a predetermined position by the coordinated use of a positioning ring and a plurality of positioning bolts; the horizontal plane and scale line settings on the positioning bolts enable the operator to accurately judge the length of the positioning bolts entering the positioning ring, thereby ensuring the accuracy and stability of the blade installation; the spacing and height between the blades and the motor shaft can be conveniently adjusted by the coordination of the vertical plate, the upper positioning rod and the lower positioning rod; the blades can be quickly connected to the motor shaft by using the positioning blocks to fix between the blades and the upper positioning rod and the lower positioning rod to clamp the edge of the axial flow housing barrel; the installation efficiency is improved and the operation difficulty is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the upper positioning rod of the utility model;

[0017] Figure 3 This is an enlarged view of point A of the utility model;

[0018] Figure 4 It is a structural diagram of the utility model when in use.

[0019] In the figure: 1. Positioning ring; 2. Positioning bolt; 3. Positioning block; 4. Vertical plate; 5. Upper sliding sleeve; 6. Fastening screw; 7. Upper positioning rod; 8. Lower positioning rod; 9. Lower sliding sleeve; 10. Connecting sliding sleeve; 11. Horizontal plate; 12. Fastening bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 、 2As shown in Figures 3 and 4, the utility model provides a technical solution: an auxiliary tool for installing axial fan blades, comprising: a positioning ring 1 with multiple positioning bolts 2 equidistantly connected by threads on the outside, a horizontal plane provided in the middle of the positioning bolt 2 and a means for judging the length of the positioning bolt 2 entering the positioning ring 1; multiple positioning blocks 3 are provided and fixed to the outside of the positioning ring 1, the inclination angle of the positioning blocks 3 matches the blade angle, and is used to be clamped and fixed between the blades; an adjustment component is placed on the outside of the positioning ring 1, and the adjustment component includes a vertical plate 4 placed on the top of the positioning ring 1, and a scale line for determining the position is provided on the outside of the vertical plate 4, and an upper positioning rod 7 and a lower positioning rod 8 for clamping and positioning are adjustably installed on the outside of the vertical plate 4.

[0022] It should be noted that the positioning block 3 of the present invention is a rubber block. During installation, the positioning block 3 is inserted into the space between the blades and supported by the elastic force of the positioning block 3. The central circular tube of the blade is placed in the positioning ring 1 and fixed by tightening the positioning bolt 2. The edge of the axial flow housing barrel is then placed between the upper positioning rod 7 and the lower positioning rod 8. The position of the upper positioning rod 7 and the lower positioning rod 8 is adjusted so that the center of the blade is docked with the connecting disk at the end of the motor shaft. The outer screws are then tightened and fixed with the motor shaft center as the center of the circle to achieve the installation of the blade.

[0023] See also Figure 3 As shown, a horizontal plate 11 is fixed to one side of the positioning ring 1, and the vertical plate 4 is an L-shaped structure. The bottom of the vertical plate 4 is slidably installed on the top of the horizontal plate 11, and the outer side of the horizontal plate 11 is slidably connected to a connecting sleeve 10. The bottom of the vertical plate 4 is slidably installed in the connecting sleeve 10, and the top of the connecting sleeve 10 is threadedly connected to a fastening bolt 12 for fixing the vertical plate 4.

[0024] It should be noted that the utility model can horizontally move the position of the cross plate 11 by loosening or tightening the fastening bolts 12 on the top of the sleeve 10, so as to adjust the distance between the impeller and the motor shaft. After the adjustment is completed, the subsequent installation can achieve rapid positioning by fixing the upper positioning rod 7 and the lower positioning rod 8.

[0025] See also Figure 1 、 2 As shown, one end of the upper positioning rod 7 is fixedly connected to the upper sliding sleeve 5, and the outer side of the upper sliding sleeve 5 is threadedly connected to the fastening screw 6. One side of the lower positioning rod 8 is fixedly connected to the lower sliding sleeve 9, and one side of the lower sliding sleeve 9 is threadedly connected to a screw. Both the upper sliding sleeve 5 and the lower sliding sleeve 9 are sliding sleeves arranged on the outer side of the vertical plate 4.

[0026] It should be noted that the utility model adjusts the position of the upper sleeve 5 by rotating the fastening screw 6 and the screw, and by squeezing the end of the loosening and fastening screw 6, the screw and the plate 4. After the adjustment is completed, the upper positioning rod 7 and the lower positioning rod 8 are clamped in the outer casing of the fan so that the blades and the motor can be aligned to achieve rapid positioning.

[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0029] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary tool for installing axial flow fan blades, characterized by: include: A positioning ring (1) with a plurality of positioning bolts (2) equidistantly arranged on the outside; Positioning blocks (3), a plurality of positioning blocks (3) are provided and are placed outside the positioning ring (1), and the inclination angle of the positioning blocks (3) matches the angle of the blades and is used to be clamped between the blades for fixation; An adjustment component is placed on the outside of the positioning ring (1), and the adjustment component includes a vertical plate (4) placed on the top of the positioning ring (1). An upper positioning rod (7) and a lower positioning rod (8) for clamping and positioning are adjustably installed on the outside of the vertical plate (4).

2. The auxiliary tooling for installing axial flow fan blades according to claim 1, characterized in that: A horizontal plate (11) is fixedly connected to one side of the positioning ring (1), and the vertical plate (4) is an L-shaped structure, with the bottom of the vertical plate (4) being slidably mounted on the top of the horizontal plate (11).

3. The auxiliary tooling for installing axial flow fan blades according to claim 2, characterized in that: The outer side of the horizontal plate (11) is slidably connected to a connecting sleeve (10), the bottom of the vertical plate (4) is slidably installed in the connecting sleeve (10), and the top of the connecting sleeve (10) is threadedly connected to a fastening bolt (12) for fixing the vertical plate (4).

4. The auxiliary tool for installing axial flow fan blades according to claim 1, characterized in that: One end of the upper positioning rod (7) is fixedly connected to an upper sliding sleeve (5), and the outer side of the upper sliding sleeve (5) is threadedly connected to a fastening screw (6).

5. The auxiliary tool for installing axial flow fan blades according to claim 4, characterized in that: A lower sleeve (9) is fixedly connected to one side of the lower positioning rod (8), and a screw is threadedly connected to one side of the lower sleeve (9).

6. The auxiliary tool for installing axial flow fan blades according to claim 5, characterized in that: The upper sliding sleeve (5) and the lower sliding sleeve (9) are both slidingly sleeved on the outer side of the vertical plate (4).

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