Motor fan blade dismounting device

Abstract

The utility model relates to the technical field of motor maintenance, in particular to a motor fan blade dismounting device which comprises two limiting plates, limiting openings are formed in the opposite sides of the two limiting plates, fixing shaft sleeves are oppositely arranged on the surfaces of the two ends of the opposite sides of the two limiting plates, and a fixing shaft penetrates through the two fixing shaft sleeves at the same end. The fixing screws are vertically arranged, a fixing base is arranged between the two fixing screws in a sliding mode, a nut is connected to the portion, on the upper side of the fixing base, of the fixing screw in a threaded mode, a second threaded hole is formed in the fixing base, and a threaded push rod is connected into the second threaded hole in a threaded mode. According to the motor fan blade dismounting device, the two limiting plates are inserted between the motor and the fan blade and matched with the fixed shaft sleeve through the fixed shaft, so that the two limiting plates are kept on the same plane, the threaded push rod abuts against the motor shaft, the fan blade can be dismounted from the motor shaft, and the motor fan blade dismounting device is suitable for dismounting fan blades with different diameters; the application range is wide, and the universality is good.

Description

Technical Field

[0001] The utility model relates to the technical field of motor maintenance, in particular to a motor fan blade disassembly device. Background Art

[0002] When a fan motor is overhauled, the fan blade of the motor needs to be removed.

[0003] Since the fan blade is directly sleeved on the output shaft of the motor, and the gap between the motor and the fan blade is relatively small. Generally, a puller is used to remove the bearing on the motor shaft. However, since the outer diameter of the fan blade on the motor is relatively large and the distance between the outer diameter of the fan blade and the motor shaft is relatively large, the puller will interfere with the fan blade and cannot hook the connection part between the fan blade and the motor shaft, resulting in the inability to remove the fan blade.

[0004] Currently, the removal of the fan blade is basically carried out by direct manual knocking operation, which is easy to damage the fan blade. Content of the Utility Model

[0005] The utility model provides a motor fan blade disassembly tool to solve the above technical deficiencies, which can disassemble fan blades of different sizes with high disassembly efficiency.

[0006] The utility model discloses a motor fan blade disassembly tool, which includes two limiting plates. Limiting ports are arranged on the opposite sides of the two limiting plates. Fixed bushings are oppositely arranged on the surfaces of the two ends of the opposite sides of the two limiting plates. The axial direction of the fixed bushing is perpendicular to the side of the limiting plate where the limiting port is arranged. It also includes a fixed shaft, and the fixed shaft penetrates through the two fixed bushings at the same end; One threaded hole is arranged on each of the two limiting plates, and a fixed screw is threadedly connected in the first threaded hole. The fixed screw is arranged vertically. A fixed seat is slidably arranged between the two fixed screws. A nut is threadedly connected to the fixed screw on the upper side of the fixed seat. The fixed seat is provided with a second threaded hole, and the center of the second threaded hole and the center of the limiting port are on the same vertical line. A threaded push rod is threadedly connected in the second threaded hole.

[0007] Further, both ends of the fixed shaft bend towards the limiting plate. When the fixed shaft is located inside the fixed bushing, both ends of the fixed shaft abut against the surface of the limiting plate.

[0008] Further, both ends of the fixed seat are U-shaped holes, and the fixed screw is inserted into the U-shaped hole.

[0009] Further, a washer is arranged on the fixed screw between the nut and the fixed seat, and the outer diameter of the washer is larger than the width of the U-shaped hole.

[0010] Further, a handrail extends outward from one side of the fixed seat.

[0011] Further, a runner is axially arranged at the upper end of the threaded push rod.

[0012] The utility model provides a motor fan blade disassembly device, which utilizes two limit plates to be inserted between the motor and the fan blade and cooperates with the fixed shaft and the fixed shaft sleeve so that the two limit plates are kept in the same plane, and the fan blade can be disassembled from the motor shaft by using a threaded push rod to press against the motor shaft. The device is suitable for disassembling fan blades of different diameters, has a wide range of applications, and good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the fixing seat of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the limiting plate of the utility model. DETAILED DESCRIPTION

[0016] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0017] Embodiment 1:

[0018] like Figures 1 - 3 As shown, the utility model discloses a motor fan blade disassembly tool, comprising two relatively arranged limit plates 1, a limit opening 2 is arranged on the opposite side of the two limit plates 1, leaving space for the output shaft of the motor, the two limit plates 1 are inserted between the motor and the fan blade, and cooperate with each other, the two limit openings 2 are butted, the output shaft of the power supply machine passes through, fixed shaft sleeves 3 are arranged on the surfaces of the two ends of the opposite side of the two limit plates 1, the axial direction of the fixed shaft sleeve 3 is perpendicular to the side of the limit plate 1 provided with the limit opening 2, and the fixed shaft 4 passes through the two relatively connected fixed shaft sleeves 3 to connect the two limit plates 1 ; Both limit plates 1 are provided with a No. 1 threaded hole 5, and the inner thread of the No. 1 threaded hole 5 is connected to a fixing screw 6, and the fixing screw 6 is vertically arranged. The centers of the two No. 1 threaded holes 5 are on the same straight line with the center of the limit opening 2 after docking. A fixing seat 7 is slidably arranged between the two fixing screws 6, and a nut 11 is threadedly connected to the fixing screw 6 on the upper side of the fixing seat 7, which plays a limiting role for the fixing seat 7. The fixing seat 7 is provided with a No. 2 threaded hole 10, and the No. 2 threaded hole 10 is arranged corresponding to the limit opening 2, and a threaded push rod 9 is threadedly connected in the No. 2 threaded hole 10.

[0019] Working principle:

[0020] Align the two limiting plates 1 at the limiting openings 2 and fit them together between the output shaft of the motor and the wind blade. Pass the fixing shaft 4 through the opposite fixing shaft sleeves 3 on both sides of the limiting plate 1 to fix the limiting plate 1, so as to realize the docking of the two limiting plates 1 and keep them in the same plane. Insert the fixing screw 6 into the first threaded hole 5 to keep it in a fixed state. Install the fixing seat 7 between the fixing screws 6 so that the fixing seat 7 is located at the upper end of the wind blade. Set nuts 11 on the fixing screws 6 on the upper side of the fixing seat 7 to limit the position of the fixing seat 7 on the fixing screws 6. Insert the threaded push rod 9 into the second threaded hole 10 of the fixing seat 7 so that the lower end of the threaded push rod 9 abuts against the output shaft of the motor. Rotate the threaded push rod 9. Due to the reaction force, the wind blade is subjected to an upward force and the motor is subjected to a downward force, thereby separating the motor and the wind blade.

[0021] Since the fixing shaft sleeve 3 is fixedly arranged on the limiting plate 1, there is a certain gap between the inner hole of the fixing shaft sleeve 3 and the upper surface of the limiting plate 1. In order to keep the limiting plate 1 in the same plane after the fixing shaft 4 is inserted into the fixing shaft sleeve 3, that is, to make both ends of the fixing shaft 4 able to abut against the upper surface of the limiting plate 1, both ends of the fixing shaft 4 are bent towards the limiting plate 1 and the surfaces of both ends of the fixing shaft 4 are in contact with the limiting plate 1 to prevent the limiting plate 1 from warping.

[0022] The connection between the fixing seat 7 and the fixing screw 6 is a U-shaped hole 8. The opening of the U-shaped hole 8 is located at both ends of the fixing seat 7. In this form, even if there is a small gap between the two limiting plates 1 during use, it can still be assembled and used. The position of the fixing screw 6 in the U-shaped hole 8 can be adjusted freely. In addition, the cooperation and assembly between the fixing seat 7 and the fixing screw 6 are simpler and more convenient, improving the operation and use efficiency.

[0023] Axially provided with washers 13 on the fixing screw 6 between the nut 11 and the fixing seat 7. The outer diameter of the washer 13 needs to be larger than the width of the U-shaped hole 8, so as to effectively limit the position of the fixing seat 7 on the fixing screw 6 to facilitate applying a pulling force to the wind blade.

[0024] One side of the fixing seat 7 extends outwards to be provided with a handrail 12, which helps to keep the fixing seat 7 stable when rotating the threaded push rod 9. At the same time, after separating the motor and the fan, it plays a supporting role for the motor wind blade disassembly tool to prevent it from falling.

[0025] Axially provided with a runner 14 at the upper end of the threaded push rod 9, which makes it more convenient and labor-saving to rotate the threaded push rod 9.

[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. These terms are only used for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically and clearly defined.

[0027] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0029] The above are only the preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Although the present invention has been disclosed as above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simplified modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A motor fan blade disassembly device, comprising two limit plates (1), characterized in that: A limiting opening (2) is provided on one side opposite to the two limiting plates (1); fixed sleeves (3) are provided on the surfaces of both ends of the one side opposite to the two limiting plates (1); the axial direction of the fixed sleeve (3) is perpendicular to the side of the limiting plate (1) on which the limiting opening (2) is provided; the fixed sleeve (3) further comprises a fixed shaft (4); the fixed shaft (4) passes through the two fixed sleeves (3) at the same end; a No. 1 threaded hole (5) is provided on each of the two limiting plates (1); the No. 1 threaded hole (5) is internally threadedly connected to a fixing screw (6); the fixing screw (6) is vertically arranged; a fixing seat (7) is slidably provided between the two fixing screws (6); a nut (11) is threadedly connected to the fixing screw (6) on the upper side of the fixing seat (7); a No. 2 threaded hole (10) is provided on the fixing seat (7); the center of the No. 2 threaded hole (10) and the center of the limiting opening (2) are on the same vertical straight line; a threaded push rod (9) is threadedly connected to the No. 2 threaded hole (10).

2. A motor fan blade disassembly device according to claim 1, characterized in that: The two ends of the fixed shaft (4) are bent toward the limiting plate (1), and when the fixed shaft (4) is located inside the fixed shaft sleeve (3), the two ends of the fixed shaft (4) abut against the surface of the limiting plate (1).

3. The motor fan blade disassembly device according to claim 1, characterized in that: Both ends of the fixing seat (7) are U-shaped holes (8), and the fixing screw (6) is inserted into the U-shaped holes (8).

4. A motor fan blade disassembly device according to claim 3, characterized in that: A washer (13) is provided on the fixing screw rod (6) between the nut (11) and the fixing seat (7), and the outer diameter of the washer (13) is greater than the width of the U-shaped hole (8).

5. The motor fan blade disassembly device according to claim 1, characterized in that: An armrest (12) is provided on one side of the fixing seat (7) extending outwards.

6. The motor fan blade disassembly device according to claim 1, characterized in that: A rotating wheel (14) is axially disposed at the upper end of the threaded push rod (9).

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