Auxiliary tool for mounting motor fan blades

Abstract

The utility model relates to an auxiliary tool for motor fan blade installation, it includes: fixed rod, the middle of fixed rod is empty cavity, sets up ball positioning piece, tapering portion, the opposite ball clamping hole of pair is set up on the lateral wall of fixed rod, sets up ball between ball clamping hole and tapering portion, wherein, ball positioning piece and fixed rod coaxial arrangement, when ball positioning piece changes with fixed rod position along the axial movement, ball can realize through ball clamping hole and protrude from fixed rod, or move to the empty cavity of fixed rod, adjustable sliding block, adjustable sliding block includes support rod and fixed part, fixed part has the through -hole that passes through fixed rod, and the through -hole inside is set up in the recess corresponding to ball in pairs on the top, wherein, when ball moves to the empty cavity of fixed rod, sets up fixed part in fixed rod, when fixed rod reaches the appropriate position, moves ball positioning piece, makes ball protrude from fixed rod, top in recess, support rod clamps the motor fan blade of waiting for installing, and it is convenient for accurate installation motor fan blade.

Description

Technical Field

[0001] This utility model relates to the field of electric motor maintenance technology, and more specifically, to an auxiliary tool for installing electric motor fan blades. Background Technology

[0002] As a core power device in modern industry, asynchronous motors are widely used in critical scenarios such as production lines, large machinery, and lifting operations. Whether driving heavy machine tools or ensuring the stable operation of automated systems, their reliability directly affects the efficiency and safety of industrial production. In the daily maintenance and repair of motors, the installation of fan blades is a crucial aspect that cannot be overlooked—it not only concerns equipment heat dissipation but is also closely related to the long-term stable operation of the motor.

[0003] However, since electric motor fans are typically mounted at the rear of the motor, a position close to the end cover maximizes heat dissipation efficiency and ensures a secure hold. But in practice, technicians often encounter a tricky problem: during installation, the motor shaft gradually extends, causing the fan blades to lose their grip and the installation process is no longer complete. Traditional installation methods often rely on readily available materials, using adjustable wrenches, screwdriver handles, or other tools as temporary supports between the fan blades and the copper rod. While this method is flexible and simple, it lacks professional technical considerations, leading to uneven force on both sides of the fan blades during installation. This results in the fan blades being tilted and making abnormal noises during operation. If the temporary tools become unstable and fall, it can damage the fan blades or even cause injury.

[0004] Therefore, there is an urgent need to develop an auxiliary tool that is more conducive to the accurate and efficient installation of electric motor fan blades. Summary of the Invention

[0005] The technical problem this utility model aims to solve is that during the maintenance and installation of electric motors, issues such as the inability of fan blades to bear force, uneven force distribution, and the instability and fall of tools and equipment arise.

[0006] To solve the above-mentioned technical problems, this utility model provides an auxiliary tool for installing electric motor fan blades, comprising: a fixed rod with a cavity in the middle, a ball bearing positioning component, the ball bearing positioning component having a tapered portion with a radially decreasing outer diameter, and pairs of opposing ball bearing locking holes on the side wall of the fixed rod, with a ball bearing between the ball bearing locking hole and the tapered portion, the ball bearing having a diameter larger than the ball bearing locking hole, wherein the ball bearing positioning component and the fixed rod are coaxially arranged, and when the ball bearing positioning component moves axially to change its position relative to the fixed rod, the ball bearing can protrude out of the fixed rod through the ball bearing locking hole or move into the cavity of the fixed rod; and an adjustable slider, the adjustable slider comprising a support rod and a fixed part, the fixed part being fixedly connected to the support rod, the fixed part having a through hole passing through the fixed rod, and the through hole being... Inside the hole, a pair of grooves corresponding to the ball bearings are arranged. When the ball bearings move into the cavity of the fixed rod, the fixing part is fitted onto the fixed rod. When the fixed rod reaches the appropriate position, the ball bearing positioning part is moved, causing the ball bearings to protrude from the fixed rod and press against the groove, thereby fixing the rod and the support rod. The support rods are arranged in pairs to clamp the motor fan blade to be installed. The relative position of the fixing part is adjusted so that the center formed by the two support rods is aligned with the center of the fan blade. The two support rods clamp the motor fan blade to be installed, ensuring that the semi-cylinders of the fixed sliders on both sides can make complete contact with the fan blade. The contact area is large and stable, while there is sufficient space in the middle, so that the motor shaft can extend smoothly and the fan blade is subjected to uniform force, which facilitates the accurate installation of the motor fan blade.

[0007] According to an embodiment of the present invention, the fixing rod has two ends, one end of which may be provided with a spring, and the end of the tapered part is pressed onto the spring.

[0008] According to an embodiment of the present invention, an unlocking button can be provided at the other end of the fixing rod, which is fixedly connected to the other end of the tapered part and protrudes from the other section of the surface of the fixing rod. This facilitates the movement of the ball into the cavity of the fixing rod by pressing the unlocking button, or the release of the unlocking button by the spring pushing the tapered part to make the ball protrude from the fixing rod.

[0009] According to an embodiment of this utility model, the cross-section of the support rod can be a minor arc.

[0010] According to an embodiment of this utility model, the support rod can be arranged in a direction perpendicular to the fixed rod.

[0011] According to an embodiment of the present invention, the length of the support rod in the direction perpendicular to the fixed rod may be greater than that of the fixed part.

[0012] According to embodiments of this utility model, the ball bearings are arranged in pairs as a group, and two or more groups of ball bearings are provided. Preferably, two to eight groups of ball bearings are provided. More preferably, three to six groups of ball bearings are provided. Even more preferably, four groups of ball bearings are provided. The specific arrangement is not limited to these, and can be determined by the user according to actual needs.

[0013] Compared with the prior art, the technical solution provided by the embodiments of this utility model can achieve at least the following beneficial effects:

[0014] The auxiliary tool for installing electric motor fan blades according to this utility model can effectively solve the problems of random installation of electric motor fan blades, uneven force on both sides during installation due to lack of special tools, abnormal noise during operation of the fan blades, and the risk of damage to the fan blades or even personal injury if the temporary tool becomes unstable and falls. It makes the electric motor fan blades accurate and efficient.

[0015] The auxiliary tool for installing electric motor fan blades according to this utility model has high application value and feasibility, and can be widely promoted and applied within the system. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0017] Figure 1 This is a front view showing an auxiliary tool for mounting electric motor fan blades according to an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 The right view;

[0019] Figure 3 This is a schematic diagram showing an adjustable slider and support rod according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram showing the ball bearing fixing assembly according to an embodiment of the present invention;

[0021] Figure 5a -c is a schematic diagram showing the cooperation of the adjustable slider and ball fixing assembly according to an embodiment of the present utility model;

[0022] Figure 6a -b is a schematic diagram showing an auxiliary tool for mounting electric motor fan blades according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the motor fan blades to be installed. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0026] Figure 1 This is a front view showing an auxiliary tool for mounting electric motor fan blades according to an embodiment of the present invention; Figure 2 yes Figure 1 The right view; Figure 3 This is a schematic diagram showing an adjustable slider and support rod according to an embodiment of the present invention; Figure 4 This is a schematic diagram showing a ball bearing fixing assembly according to an embodiment of the present invention.

[0027] like Figures 1 to 4 As shown, the auxiliary tools for mounting the motor fan blades include: a fixing rod 1 and an adjustable slider 2.

[0028] The fixed rod 1 has a cavity in the middle and is equipped with a ball bearing 3 positioning component. The ball bearing 3 positioning component has a tapered portion 8 with a radially decreasing outer diameter. Pairs of opposing ball bearing positioning holes 11 are provided on the side wall of the fixed rod 1. A ball bearing 3 is arranged between the ball bearing positioning hole 11 and the tapered portion 8. The diameter of the ball bearing 3 is larger than that of the ball bearing positioning hole 11. The ball bearing positioning component 11 and the fixed rod 1 are coaxially arranged. When the ball bearing positioning component 11 moves axially to change its position relative to the fixed rod 1, the ball bearing 3 can protrude out of the fixed rod 1 through the ball bearing positioning hole 11 or move into the cavity of the fixed rod 1.

[0029] The adjustable slider 2 includes a support rod 21 and a fixing part 22. The fixing part 22 is fixedly connected to the support rod 21. The fixing part 22 has a through hole through the fixing rod 1, and the inside of the through hole is provided with a pair of grooves 23 corresponding to the balls 3. When the balls 3 move into the cavity of the fixing rod 1, the fixing rod 1 is sleeved on the fixing rod 1. When the fixing rod 1 is in a suitable position, the positioning member of the balls 3 is moved so that the balls 3 protrude out of the fixing rod 1 and press against the grooves 23, thereby fixing the rod 1 and the support rod 21.

[0030] The support rods 21 are arranged in pairs to clamp the motor fan blades to be installed. The relative position of the fixing part 22 is adjusted so that the center formed by the two support rods 21 is aligned with the center of the fan blade. The two support rods 21 clamp the motor fan blades to be installed, ensuring that the semi-cylinders of the fixed sliders on both sides can fully contact the fan blades. The contact area is large and stable, while there is sufficient space in the middle, so that the motor shaft can extend smoothly and the fan blades are subjected to uniform force, which facilitates the accurate installation of the motor fan blades.

[0031] The auxiliary tool for installing electric motor fan blades according to this utility model can effectively solve the problems of random installation of electric motor fan blades, uneven force on both sides during installation due to lack of special tools, abnormal noise during operation of the fan blades, and the risk of damage to the fan blades or even personal injury if the temporary tool becomes unstable and falls. It makes the electric motor fan blades accurate and efficient.

[0032] Figure 5a -c is a schematic diagram showing the engagement of the adjustable slider and ball bearing fixing assembly according to an embodiment of the present invention.

[0033] like Figure 5a As shown in -c, the fixing rod 1 has two ends. A spring 4 is installed inside one end, and one end of the tapered portion 8 is pressed onto the spring 4. An unlocking button 5 is installed at the other end of the fixing rod 1, fixedly connected to the other end of the tapered portion 8, and protrudes from the other section of the fixing rod 1. This allows the ball bearing 3 to move into the cavity of the fixing rod 1 by pressing the unlocking button 5, so that the adjustable slider 2 can be installed, or as... Figure 5b As shown, when the unlock button 5 is released, the spring 4 pushes the tapered part 8, causing the ball 3 to protrude from the fixed rod 1, thus fixing the adjustable slider 2. Figure 5c As shown, press the unlock button 5 again to remove the adjustable slider 2.

[0034] According to one or more embodiments of the present invention, the cross-section of the support rod 21 is a minor arc.

[0035] According to one or more embodiments of the present invention, the support rod 21 is arranged in a direction perpendicular to the fixed rod 1.

[0036] According to one or more embodiments of the present invention, the length of the support rod 21 in the direction perpendicular to the fixed rod 1 is greater than that of the fixed part 22.

[0037] According to one or more embodiments of this utility model, the ball bearings 3 are arranged in pairs as a group, and two or more groups of ball bearings 3 are provided. Preferably, two to eight groups of ball bearings 3 are provided. More preferably, three to six groups of ball bearings 3 are provided. More preferably, four groups of ball bearings 3 are provided. The specific arrangement is not limited to these, and can be determined by the user according to actual needs.

[0038] This utility model provides a motor fan blade installation tool, comprising a fixed rod 1 and two adjustable sliders 2 on both sides. The adjustable sliders 2 can be flexibly selected according to the size of different fan blades. The adjustable sliders 2 are hollowed out, with grooves 23 cleverly left at the top and bottom to cooperate with the ball bearings 3 of the fixed rod 1. The fixed sliders 2 and the ball bearings 3 fixing group cooperate with each other to realize the locking / unlocking of the adjustable sliders 2 and the fixed rod 1. The fixed rod 1 is also hollow inside, and the ball bearings 3 fixing group is installed inside. The ball bearings 3 fixing group includes a number of balls 3 and a spring 4 on the right side. The balls 3 can move in the preset slots to realize the locking / unlocking of the adjustable sliders 2 on both sides.

[0039] Figure 6a -b is a schematic diagram showing an auxiliary tool for mounting electric motor fan blades according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the motor fan blades to be installed.

[0040] like Figure 6a As shown in -b, when using it, select the appropriate adjustable slider 2 according to the size of different fan blades, and ensure that the two fixed sliders on both sides are the same size and placed in a mirror-symmetrical manner. Pick up the fixed rod 1 and press the unlock / lock button 5. At this time, the ball bearing 3 inside the fixed rod 1 is unlocked and can move freely. Take out the prepared fixed sliders on both sides, insert them into the fixed rod 1, and then release the unlock / lock button 5. At this time, under the pushing force of the internal elastic spring 4, the ball bearing 3 inside the fixed rod 1 is pushed out and stuck in the groove 23 of the fixed rod 1 and the adjustable slider 2, and cannot move. At this time, the assembly of the installation tool is completed.

[0041] The installation tool is then placed over the motor fan blades, aligning their centers to ensure complete contact between the semi-cylinders of the fixed sliders on both sides and the fan blades 6. The contact area is large and stable, while sufficient space is left in the middle to allow the motor shaft to extend smoothly. Then, two people work together, one holding the installation tool steady and the other tapping it with a copper rod 7. The installation tool will evenly transmit the thrust to the fan blades 6, allowing them to move smoothly to the installation position under the force. This solves the technical problems of inconvenience and poor reliability of traditional installation methods caused by the extension of the motor tail shaft.

[0042] After installation, press the unlock / lock button 5 again. At this time, the ball bearing 3 inside the fixed rod 1 will be unlocked, and the adjustable slider 2 can move freely and be removed.

[0043] The auxiliary tool for installing electric motor fan blades according to this utility model has high application value and feasibility, and can be widely promoted and applied within the system.

[0044] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The scope of protection of the present utility model is determined by the appended claims.

Claims

1. An auxiliary tool for installing fan blades on an electric motor, characterized in that, include: A fixed rod has a cavity in the middle and a ball positioning component is provided. The ball positioning component has a tapered portion with a radially decreasing outer diameter. Pairs of opposing ball locking holes are provided on the side wall of the fixed rod. A ball is disposed between the ball locking hole and the tapered portion. The diameter of the ball is larger than that of the ball locking hole. The ball positioning component and the fixed rod are coaxially arranged. When the ball positioning component moves axially to change its position relative to the fixed rod, the ball can protrude out of the fixed rod through the ball locking hole or move into the cavity of the fixed rod. An adjustable slider includes a support rod and a fixing part. The fixing part is fixedly connected to the support rod. The fixing part has a through hole passing through the fixing rod, and a pair of grooves corresponding to the rolling balls are arranged inside the through hole. When the rolling balls move into the cavity of the fixing rod, the fixing part is sleeved on the fixing rod. When the fixing rod reaches a suitable position, the rolling ball positioning member is moved, causing the rolling balls to protrude from the fixing rod and press against the grooves, thereby fixing the fixing rod and the support rod. The support rods are arranged in pairs to clamp the motor fan blades to be installed. The relative positions of the fixing parts are adjusted so that the center formed by the two support rods is aligned with the center of the fan blade. The two support rods clamp the motor fan blades to be installed, ensuring that the semi-cylinders of the fixed sliders on both sides can make complete contact with the fan blades. The contact area is large and stable, while there is sufficient space in the middle, so that the motor shaft can extend smoothly and the fan blades are subjected to uniform force, which facilitates accurate installation of the motor fan blades.

2. The auxiliary tool for installing electric motor fan blades as described in claim 1, characterized in that, The fixing rod has two ends, one end of which is equipped with a spring, and the tapered part is pressed against the spring.

3. The auxiliary tool for installing electric motor fan blades as described in claim 2, characterized in that, An unlock button is provided at the other end of the fixed rod, which is fixedly connected to the other end of the tapered part and protrudes from the other section of the fixed rod surface. This allows the ball to move into the cavity of the fixed rod by pressing the unlock button, or for the ball to protrude from the fixed rod by being pushed by the spring when the unlock button is released.

4. The auxiliary tool for installing electric motor fan blades as described in claim 1, characterized in that, in, The cross-section of the support rod is a minor arc.

5. The auxiliary tool for installing electric motor fan blades as described in claim 1, characterized in that, The support rod is arranged in a direction perpendicular to the fixed rod.

6. The auxiliary tool for installing electric motor fan blades as described in claim 5, characterized in that, The length of the support rod in the direction perpendicular to the fixed rod is greater than that of the fixed part.

7. The auxiliary tool for installing electric motor fan blades as described in claim 1, characterized in that, The ball bearings are arranged in pairs, and there are two or more sets of ball bearings.

8. The auxiliary tool for installing electric motor fan blades as described in claim 1, characterized in that, The ball bearings are configured in 2 to 8 groups.

9. The auxiliary tool for installing electric motor fan blades as described in claim 1, characterized in that, The ball bearings are configured in 3 to 6 sets.

10. The auxiliary tool for mounting electric motor fan blades as described in claim 1, characterized in that, The ball bearings are configured in 4 sets.

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