Adjustable axial flow fan alignment device

Abstract

The utility model relates to an adjustable axial flow fan alignment device which comprises a supporting plate, debugging devices are arranged on the left side and the right side of the supporting plate, two reinforcing plates are fixedly installed on the back face of the supporting plate, a fixing plate is fixedly installed between the two reinforcing plates, and a fixing groove is formed in the bottom of the fixing plate. A locking block is movably installed in the fixing groove, and a threaded hole is formed in the top of the fixing plate. The adjustable axial flow fan alignment device is simple in structure and convenient to use, the position of a motor can be freely and easily adjusted finely, motor alignment work is greatly facilitated, fan motor alignment precision is improved, the adjustable axial flow fan alignment device is of great significance in guaranteeing safety production, improving operation efficiency and prolonging the service life of equipment, equipment abrasion can be reduced through good alignment, and the production cost is reduced. The service life of the axial flow fan and the motor is prolonged, the maintenance cost and the replacement frequency are reduced, energy loss can be reduced through correct alignment, and the operation efficiency of the fan is improved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tool technology, specifically an adjustable axial flow fan alignment device. Background Technology

[0002] Large axial flow fans are crucial auxiliary equipment in coal-fired power plants, and their efficient and stable operation is vital to the overall energy conversion efficiency of the plant. However, in thermal power plants, axial flow fans with adjustable blades frequently experience malfunctions, such as excessive motor vibration, excessive casing vibration, and high bearing temperatures, which seriously affect the safe and stable operation of the unit. Motor alignment is a key step in ensuring the normal operation of axial flow fans. By precisely adjusting the relative position of the motor and drive shaft, equipment vibration can be reduced, mechanical failures caused by vibration can be prevented, and thus the safe production of the power plant can be guaranteed.

[0003] Alignment of large axial flow fan motors is of great significance for ensuring safe production, improving operating efficiency, and extending equipment life.

[0004] However, practical operation faces technical and management challenges. Motor alignment typically involves manually vibrating the motor base with a sledgehammer or moving the motor using a monorail, which cannot achieve fine-tuning of the motor position, resulting in low adjustment accuracy and frequent rework. Aligning a single motor often takes three days, making the work time-consuming and labor-intensive. Furthermore, it requires multiple people working together, involving significant physical exertion. Vibrating the motor base can also easily damage the motor housing, causing equipment damage. Therefore, an adjustable axial flow fan alignment device is proposed to solve these problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an adjustable axial flow fan alignment device. It offers advantages such as ease of use and the ability to easily fine-tune the motor position. This solves the problems associated with manually vibrating the motor base with a sledgehammer or moving the motor using a monorail, which cannot achieve precise motor position adjustments, require frequent rework, and often take up to three days to align a single motor – a time-consuming and labor-intensive process. Furthermore, it requires multiple people working together, resulting in significant physical exertion. Vibrating the motor base can also easily damage the motor housing, causing equipment damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable axial flow fan alignment device, comprising a support plate, adjustment devices provided on the left and right sides of the support plate, two reinforcing plates fixedly installed on the back of the support plate, a fixing plate fixedly installed between the two reinforcing plates, a fixing groove opened at the bottom of the fixing plate, a locking block movably installed inside the fixing groove, a threaded hole opened at the top of the fixing plate, a locking bolt threadedly connected inside the threaded hole, an installation cavity opened inside the fixing plate, a support rod movably installed inside the installation cavity, and a slot opened at the top of the locking block;

[0007] The debugging device includes a threaded rod, and threaded rods are threadedly connected to both the left and right sides of the support plate. A rotating shaft is fixedly installed on the outer surface of the threaded rod. The top and bottom of the threaded rod are provided with slots. An insertion hole is provided inside the threaded rod. A rotating rod is inserted into the insertion hole. Limit blocks are fixedly installed on the top and bottom of the outer surface of the rotating rod. A support nut is fixedly installed on the back of the support plate.

[0008] Furthermore, both threaded rods penetrate the support plate and extend into the interior of the support nut for threaded connection.

[0009] Furthermore, the card slot and the socket are on the same vertical line, and the inner diameter of the card slot is larger than the inner diameter of the socket.

[0010] Furthermore, the limiting blocks are located on the left and right sides of the outer surface of the rotating rod, and the threaded rods are located on the left and right sides of the fixing plate.

[0011] Furthermore, the front end of the support rod passes through the fixing plate and extends into the interior of the fixing groove, and the front end of the support rod is fixedly connected to the locking block. There are two support rods.

[0012] Furthermore, five threaded holes are provided and are arranged at equal intervals, and the bottom end of the locking bolt passes through the threaded hole and extends into the interior of the slot.

[0013] Furthermore, the two sides of the locking block are inclined surfaces, and the top of the locking block is in contact with the inner top wall of the fixing groove.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This adjustable axial flow fan alignment device features a simple structure and ease of use. It allows for free and easy fine-tuning of the motor position, greatly simplifying motor alignment and improving alignment accuracy. The tool is compact and portable, suitable for operation in various spaces, enhancing both alignment accuracy and efficiency. It enables fine-tuning of motor position, reducing alignment time for each motor by more than half. This is crucial for ensuring safe production, improving operational efficiency, and extending equipment lifespan. Proper alignment reduces equipment wear, extends the lifespan of axial flow fans and motors, and lowers maintenance costs and replacement frequency. Correct alignment also reduces energy loss and improves fan operating efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is a schematic diagram of the debugging device of this utility model;

[0019] Figure 4 This is a side sectional view of the fixing plate of this utility model;

[0020] Figure 5 This is a top sectional view of the fixing plate of this utility model.

[0021] In the diagram: 1. Support plate; 2. Debugging device; 201. Threaded rod; 202. Rotating shaft; 203. Slot; 204. Rotating rod; 205. Limiting block; 206. Support nut; 3. Reinforcing plate; 4. Fixing plate; 5. Fixing groove; 6. Locking block; 7. Threaded hole; 8. Locking bolt; 9. Mounting cavity; 10. Support rod; 11. Slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 An adjustable axial flow fan alignment device in this embodiment includes a support plate (1), an adjustment device (2) is provided on the left and right sides of the support plate (1), two reinforcing plates (3) are fixedly installed on the back of the support plate (1), a fixing plate (4) is fixedly installed between the two reinforcing plates (3), a fixing groove (5) is provided at the bottom of the fixing plate (4), a locking block (6) is movably installed inside the fixing groove (5), a threaded hole (7) is provided at the top of the fixing plate (4), a locking bolt (8) is threadedly connected inside the threaded hole (7), an installation cavity (9) is provided inside the fixing plate (4), a support rod (10) is movably installed inside the installation cavity (9), and a slot (11) is provided at the top of the locking block (6).

[0024] The debugging device (2) includes a threaded rod (201). The left and right sides of the support plate (1) are threaded with threaded rods (201). A rotating shaft (202) is fixedly installed on the outer surface of the threaded rod (201). The top and bottom of the threaded rod (201) are provided with slots (203). The inside of the threaded rod (201) is provided with a hole (207). A rotating rod (204) is inserted into the hole (207). Limiting blocks (205) are fixedly installed on the top and bottom of the outer surface of the rotating rod (204). A support nut (206) is fixedly installed on the back of the support plate (1).

[0025] In this embodiment, the front end of the threaded rod 201 passes through the support plate 1 and is threadedly connected to the support nut 206. Rotating the threaded rod 201 can move it forward, thereby pushing the axial flow fan housing to move and make fine adjustments.

[0026] In this embodiment, the slot 203 is used to restrict the rotating rod 204 so that it does not detach from the inside of the insertion hole 207. When the rotating rod 204 is placed at the bottom, the upper limiting block 205 will be placed inside the upper slot 203. When rotating the threaded rod 201, the rotating rod 204 is rotated 90° from the position perpendicular to the threaded rod 201, and then the rotating rod 204 is moved to the left. The rotating rod 204 is continued to be rotated to increase the length of the lever arm, which makes it easier to rotate the threaded rod 201 to fine-tune the position of the axial flow fan.

[0027] In this embodiment, five threaded holes 7 at different positions are provided to adjust the position of the locking block 6. By rotating the locking bolt 8, it is placed in different threaded holes 7, and then the locking block 6 is moved to the lower part of the corresponding threaded hole 7. Finally, the bottom end of the locking bolt 8 is placed inside the slot 11 for fixation, thereby adapting to motor base plates of different sizes.

[0028] When implementing this procedure, please follow these steps:

[0029] 1) First, rotate the adjustment device 2 to the leftmost end, and install the fixing plate 4 on the motor base plate through the fixing slot 5;

[0030] 2) Then, by rotating the locking bolt 8, the locking block 6 is released from its limit position, and the position of the locking block 6 is moved inside the fixing groove 5 to change the size of the fixing groove 5, thereby adapting to different motor base plates;

[0031] 3) Next, bring the end of the threaded rod 201 on one side into contact with the housing of the axial flow fan, and rotate the threaded rod 201 by rotating the rotating shaft 202 or the rotating rod 205, so that it moves to the right along the support nut 206;

[0032] 4) The final thrust can be used to fine-tune the position of the axial flow fan.

[0033] In summary, this adjustable axial flow fan alignment device features a simple structure and convenient operation, allowing for easy and free fine-tuning of the motor position. This greatly simplifies motor alignment and improves the accuracy of fan motor alignment. The tool is compact and flexible, suitable for operation in various spaces, enhancing the accuracy and efficiency of fan motor alignment. It enables fine-tuning of motor position, reducing the alignment time for each motor by more than half. This is crucial for ensuring safe production, improving operational efficiency, and extending equipment lifespan. Proper alignment reduces equipment wear, extends the lifespan of axial flow fans and motors, and lowers maintenance costs and replacement frequency. Correct alignment reduces energy loss and improves fan operating efficiency. It solves the problems of manual methods like using a sledgehammer to vibrate the motor base or using a monorail to move the motor, which cannot achieve fine-tuning of the motor position, have low adjustment accuracy, require frequent rework, and often take up to three days to align a single motor—a time-consuming and labor-intensive task requiring multiple people and significant physical exertion. Vibrating the motor base can also damage the motor housing, causing equipment damage.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable axial flow fan alignment device, comprising a support plate (1), characterized in that: The support plate (1) is provided with debugging devices (2) on the left and right sides. Two reinforcing plates (3) are fixedly installed on the back of the support plate (1). A fixing plate (4) is fixedly installed between the two reinforcing plates (3). A fixing groove (5) is opened at the bottom of the fixing plate (4). A locking block (6) is movably installed inside the fixing groove (5). A threaded hole (7) is opened at the top of the fixing plate (4). A locking bolt (8) is threaded inside the threaded hole (7). An installation cavity (9) is opened inside the fixing plate (4). A support rod (10) is movably installed inside the installation cavity (9). A slot (11) is opened at the top of the locking block (6). The debugging device (2) includes a threaded rod (201). The left and right sides of the support plate (1) are threaded with threaded rods (201). A rotating shaft (202) is fixedly installed on the outer surface of the threaded rod (201). The top and bottom of the threaded rod (201) are provided with slots (203). The inside of the threaded rod (201) is provided with a hole (207). A rotating rod (204) is inserted into the hole (207). Limiting blocks (205) are fixedly installed on the top and bottom of the outer surface of the rotating rod (204). A support nut (206) is fixedly installed on the back of the support plate (1).

2. The adjustable axial flow fan alignment device according to claim 1, characterized in that, Both threaded rods (201) penetrate the support plate (1) and extend into the interior of the support nut (206) where they are threadedly connected.

3. The adjustable axial flow fan alignment device according to claim 1, characterized in that: The slot (203) and the socket (207) are on the same vertical line, and the inner diameter of the slot (203) is larger than the inner diameter of the socket (207).

4. The adjustable axial flow fan alignment device according to claim 1, characterized in that: The limiting block (205) is set on the left and right sides of the outer surface of the rotating rod (204), and the threaded rod (201) is located on the left and right sides of the fixing plate (4).

5. The adjustable axial flow fan alignment device according to claim 1, characterized in that: The front end of the support rod (10) passes through the fixing plate (4) and extends into the interior of the fixing groove (5), and the front end of the support rod (10) is fixedly connected to the locking block (6). There are two support rods (10).

6. The adjustable axial flow fan alignment device according to claim 1, characterized in that: The threaded holes (7) are provided in five places and are arranged at equal intervals. The bottom end of the locking bolt (8) passes through the threaded holes (7) and extends into the interior of the slot (11).

7. The adjustable axial flow fan alignment device according to claim 1, characterized in that: The locking block (6) has inclined surfaces on both sides, and the top of the locking block (6) is in contact with the inner top wall of the fixing groove (5).

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