A mounting tool for outer rotor motor magnetic steel

Abstract

The present invention discloses a fixture for installing magnets in external rotor motors. The fixture comprises a magnetic sleeve with an annular through-hole, a magnetic positioning cylinder disposed at the first end of the magnetic sleeve, and a positioning block disposed at the second end of the magnetic sleeve. The magnetic positioning cylinder and the positioning block are used to respectively compress the ends of the magnet to position the magnet within the magnetic sleeve. This fixture improves upon existing manual installation methods for magnets in external rotor motors by utilizing the magnetic positioning cylinder and the positioning block to position the magnet within the magnetic sleeve, achieving the goal of safe and quick installation of magnets in permanent magnet motors.

Description

Technical Field

[0001] The present invention relates to the technical field of magnet installation for an outer-rotor motor, and particularly relates to an installation tool for magnets of an outer-rotor motor. Background Art

[0002] In a permanent magnet motor, it is necessary to install the magnet 1 of the outer-rotor motor, and the magnet 1 is positioned and installed in the magnet sleeve 2 and fixed by pressing with a magnet pressing strip 5.

[0003] For a permanent magnet motor with high power density, which has the characteristics of high power, small volume, and light weight, its magnet 1 needs to select a high-grade magnet with large magnetic suction; for this kind of high-grade magnet, there is no matching installation tool, and workers need to manually position and install it, which not only increases the difficulty of workers' operation and installation, but also increases the risk of damage to the high-grade magnet and injury to workers due to the strong magnetic suction.

[0004] Therefore, how to provide an installation tool for magnets of an outer-rotor motor that is convenient for the safe and quick installation of high-grade magnets is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide an installation tool for magnets of an outer-rotor motor, which improves the existing manual magnet installation method, and uses a magnet positioning cylinder and a positioning block to position and install the magnet in the magnet sleeve, achieving the purpose of safe and quick installation of the magnet of the permanent magnet motor.

[0006] To achieve the above purpose, the present invention provides an installation tool for magnets of an outer-rotor motor, including a magnet sleeve with an annular through cavity. A magnet positioning cylinder is provided at the first end of the magnet sleeve, and a positioning block is provided at the second end of the magnet sleeve. The magnet positioning cylinder and the positioning block are used to press both ends of the magnet respectively to achieve the positioning and installation of the magnet in the magnet sleeve.

[0007] Preferably, the magnet positioning cylinder is provided with an installation hole for the magnet pressing strip to pass through. The magnet pressing strip is in a "T" shape and is used to fixedly install the magnet after the magnet is positioned and installed. The magnet pressing strip presses the magnet on both sides of the magnet pressing strip through a pressing strip installation screw.

[0008] Preferably, the magnet positioning cylinder has a positioning hole for the magnet to be axially inserted into.

[0009] Preferably, the magnets are evenly distributed at equal intervals in the circumferential direction of the annular through cavity in the magnet sleeve, and the installation holes and the positioning holes are evenly distributed at equal intervals in the circumferential direction of the magnet positioning cylinder.

[0010] Preferably, the magnetic steel positioning cylinder is fixedly connected to the magnetic steel sleeve at the first end through a positioning cylinder mounting screw.

[0011] Preferably, the positioning block is fixedly connected to the magnetic steel sleeve at the second end via a positioning block mounting screw.

[0012] Preferably, the magnetic steel positioning cylinder is provided with a third threaded top screw, and the third threaded top screw is used to radially press the magnetic steel at the first end.

[0013] Preferably, the positioning block is provided with a first threaded top screw, and the first threaded top screw is used to radially press the magnetic steel at the second end.

[0014] Preferably, the positioning block is provided with a second threaded top screw, and the second threaded top screw is used to press the magnetic steel axially at the second end.

[0015] Preferably, the third thread jackscrew, the first thread jackscrew and the second thread jackscrew are spring jackscrews, and the spring jackscrews include a pressing head, a spring and an installation cavity, the spring is connected to the pressing head, and the spring is fixed to the installation cavity.

[0016] Compared with the above-mentioned background technology, the installation tool for the outer rotor motor magnet provided by the present invention includes a magnet sleeve, a magnet positioning cylinder and a positioning block. The magnet sleeve has an annular through-hole, the magnet positioning cylinder is arranged at the first end of the magnet sleeve, and the positioning block is arranged at the second end of the magnet sleeve; during positioning and installation, the magnet positioning cylinder and the positioning block respectively press the two ends of the magnet, thereby positioning the magnet on the magnet sleeve. At this time, the position of the magnet is accurate and will not shake or deviate, and the fixed installation of the magnet is completed in subsequent operations; the installation tool improves the existing manual installation method of magnets, and additionally adds and utilizes the magnet positioning cylinder and positioning block to facilitate the safe and quick installation of high-grade magnets. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 A front view schematic diagram of a tool for installing magnetic steel of an outer rotor motor provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the back side of a tool for installing magnetic steel of an outer rotor motor provided by an embodiment of the present invention;

[0020] Figure 3 A schematic cross-sectional view of a tool for installing magnetic steel of an outer rotor motor provided by an embodiment of the present invention;

[0021] Figure 4 for Figure 3 EE schematic diagram;

[0022] Figure 5 for Figure 1 A partial enlarged schematic diagram in the middle;

[0023] Figure 6 for Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0024] Figure 7 for Figure 4 A partial enlarged schematic diagram of point C in the middle;

[0025] Figure 8 for Figure 7 A partial enlarged schematic diagram of point D in the middle;

[0026] Figure 9 A schematic structural diagram of a spring top wire provided in an embodiment of the present invention.

[0027] in:

[0028] 1-magnet, 2-magnetic sleeve, 3-magnetic positioning cylinder, 4-positioning block, 5-magnetic pressure strip, 31-positioning cylinder mounting screw, 32-third thread top screw, 41-positioning block mounting screw, 42-first thread top screw, 43-second thread top screw, 51-pressure strip mounting screw. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] Please refer to Figures 1 to 9 ,in, Figure 1 A front view of a tool for installing magnetic steel of an outer rotor motor provided by an embodiment of the present invention. Figure 2 This is a schematic diagram of the back side of the installation tool for the outer rotor motor magnetic steel provided by an embodiment of the present invention. Figure 3A cross-sectional schematic diagram of a tool for installing magnetic steel of an outer rotor motor provided by an embodiment of the present invention, Figure 4 for Figure 3 EE schematic diagram, Figure 5 for Figure 1 A partial enlarged schematic diagram, Figure 6 for Figure 3 A partial enlarged diagram of point B in the middle. Figure 7 for Figure 4 A partial enlarged diagram of point C in the middle. Figure 8 for Figure 7 The enlarged schematic diagram of the part D in the middle, Figure 9 A schematic structural diagram of a spring top wire provided in an embodiment of the present invention.

[0032] In a first specific embodiment, the installation tool for the outer rotor motor magnet provided by the present invention includes a magnetic steel sleeve 2, a magnetic steel positioning cylinder 3 and a positioning block 4. Compared with the prior art of directly fixing the magnetic steel 1 on the magnetic steel sleeve 2 manually, the present invention additionally adds and utilizes the magnetic steel positioning cylinder 3 and the positioning block 4. The magnetic steel positioning cylinder 3 and the positioning block 4 are used to first position and install the magnetic steel 1 on the magnetic steel sleeve 2, and then the fixed installation is completed through subsequent operations; specifically, the magnetic steel sleeve 2 has an annular through-hole, the magnetic steel positioning cylinder 3 is arranged at the first end of the magnetic steel sleeve 2, and the positioning block 4 is arranged at the second end of the magnetic steel sleeve 2. During positioning and installation, the magnetic steel positioning cylinder 3 and the positioning block 4 respectively press the two ends of the magnetic steel 1, thereby completing the positioning and installation of the magnetic steel 1 on the magnetic steel sleeve 2.

[0033] It should be noted that the present invention does not change the way the magnet 1 is fixedly installed in the magnet sleeve 2, but rather performs positioning installation before fixed installation; in other words, the installation tooling improves the existing manual installation method of the magnet 1, and additionally adds and utilizes the magnet positioning cylinder 3 and the positioning block 4 to ensure that the position of the magnet 1 is accurate and will not shake or deviate during the subsequent fixed installation process, so as to facilitate the safe and quick installation of high-grade magnets 1, which not only ensures the installation accuracy, but also reduces the quality and safety risks of the magnet 1.

[0034] On this basis, after completing the positioning and installation of the above-mentioned magnet 1 in the magnet sleeve 2, the magnet 1 is fixedly installed in the magnet sleeve 2. When it is necessary to press and fix the two ends of the magnet 1, the tail end of the magnet 1, that is, the second end, is not blocked, and the tail end can be directly pressed and fixed by using the magnet pressure strip 5 and the pressure strip mounting screw 51. The head end of the magnet 1, that is, the first end, is blocked by the magnet positioning tube 3, and a mounting hole is opened in the magnet positioning tube 3. The mounting hole is for the magnet pressure strip 5 and the pressure strip mounting screw 51 to pass through to achieve pressing and fixing of the head end.

[0035] In this embodiment, the magnet bar 5 is in a "T" shape. The lower left side and the lower right side of the "T" shape respectively correspond to the installation positions of one magnet 1. When the magnet bar 5 is pressed down, the magnets 1 on both sides of the magnet bar 5 are pressed tightly and thus fixedly installed. In addition, a pressing force is provided to the magnet bar 5 by the bar installation screw 51. The bar installation screw 51 is assembled in the magnet sleeve 2. By screwing the bar installation screw 51, the bar installation screw 51 then drives the magnet bar 5 to press down, and the magnet bar 5 presses the magnets 1 on both sides at the same time.

[0036] Similarly, this installation tooling can also be used for the adhesive installation of the magnet 1. The usage method is the same as the above-mentioned bar method of the magnet 1, and will not be elaborated here.

[0037] In a specific implementation manner, during positioning and installation, first fix the magnet positioning cylinder 3 to the magnet sleeve 2, then preliminarily position the magnet 1 in the magnet sleeve 2 by using the positioning function of the magnet positioning cylinder 3, and then fix the positioning block 4 to the magnet sleeve 2, and then further position the magnet 1 in the magnet sleeve 2 by using the positioning function of the positioning block 4.

[0038] Exemplarily, the magnet positioning cylinder 3 is fixedly connected to the magnet sleeve 2 at the first end through the positioning cylinder installation screw 31. The position and quantity of the positioning cylinder installation screw 31 can vary according to actual situations, and should also belong to the scope of description of this embodiment.

[0039] Exemplarily, the positioning block 4 is fixedly connected to the magnet sleeve 2 at the second end through the positioning block installation screw 41. The position and quantity of the positioning block installation screw 41 can vary according to actual situations, and should also belong to the scope of description of this embodiment.

[0040] In this embodiment, the magnet positioning cylinder 3 has a positioning hole. When the magnet positioning cylinder 3 preliminarily positions the magnet 1, the magnet 1 is axially inserted into the positioning hole of the magnet positioning cylinder 3.

[0041] It should be noted that this embodiment only describes the installation methods for one or two magnets 1, and does not limit that this embodiment is only applicable to the installation methods for one or two magnets 1. As for the installation methods for more quantities, they should also belong to the scope of description of this embodiment.

[0042] Such as Figure 1As shown, there are multiple magnets 1 on the magnetic sleeve 2, and the head ends of multiple magnets 1 are embedded in the positioning holes of the magnetic positioning cylinder 3. At this time, the magnets 1 are evenly and equidistantly distributed on the magnetic sleeve 2 along the circumference of the annular through-hole, and the mounting holes and positioning holes are evenly and equidistantly distributed on the magnetic positioning cylinder 3 along the circumference of the magnetic positioning cylinder 3. On this basis, positioning blocks 4 are sequentially set at the tail ends of the magnets 1 that have completed the initial positioning, and then further positioning of the magnets 1 is completed in sequence until all the magnets 1 are positioned and installed. Then, the magnets 1 that have completed the positioning and installation are pressed against the magnetic sleeve 2 through the magnetic pressure strips 5. After the fixed installation of the magnets 1 is completed, the magnetic positioning cylinder 3 and all positioning blocks 4 are removed.

[0043] For better technical effects, on the basis that the positioning hole of the magnetic steel positioning cylinder 3 provides positioning for the magnetic steel 1 , a third threaded top screw 32 is provided on the magnetic steel positioning cylinder 3 , and the third threaded top screw 32 is radially pressed against the magnetic steel 1 at the first end.

[0044] Similarly, the positioning block 4 is provided with a first threaded top screw 42, which is used to radially press the magnetic steel 1 at the second end; the positioning block 4 is provided with a second threaded top screw 43, which is used to axially press the magnetic steel 1 at the second end.

[0045] In this embodiment, the above-mentioned threaded top screw is used to directly contact and tighten the magnetic steel 1, while positioning and restricting the magnetic steel 1 in the radial and axial directions to prevent the magnetic steel 1 from tipping over due to magnetic attraction during installation, thereby providing a more stable installation effect.

[0046] In a specific embodiment, the third thread top screw 32, the first thread top screw 42 and the second thread top screw 43 are spring top screws, and the spring top screws adopt an internal spring structure, which is convenient for pre-tightening the magnetic steel 1 while also ensuring that the magnetic steel 1 is not damaged or crushed; specifically, Figure 9 As shown, the spring top wire has different tightening effects as the deformation of the spring changes. The spring top wire includes a pressure head, a spring and an installation cavity. The spring is connected to the pressure head and the spring is fixed to the installation cavity.

[0047] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0048] The above is a detailed introduction to the installation tool for the outer rotor motor magnet provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that for those skilled in the art, various improvements and modifications can be made to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A tool for installing magnetic steel of an outer rotor motor, characterized in that: It includes a magnet sleeve (2) with an annular through cavity. A magnet positioning cylinder (3) is provided at the first end of the magnet sleeve (2), and a positioning block (4) is provided at the second end of the magnet sleeve (2). The magnet positioning cylinder (3) and the positioning block (4) are used to press both ends of the magnet (1) respectively to achieve the positioning and installation of the magnet (1) in the magnet sleeve (2). The magnet positioning cylinder (3) is provided with an installation hole for a magnet pressing strip (5) to pass through. The magnet pressing strip (5) is in a "T" shape and is used to fixedly install the magnet (1) after the magnet (1) is positioned and installed. The magnet pressing strip (5) presses the magnet (1) on both sides of the magnet pressing strip (5) through a pressing strip installation screw (51). After the fixed installation of the magnet (1) is completed, the magnet positioning cylinder (3) and all the positioning blocks (4) are removed.

2. The installation tool for outer rotor motor magnetic steel according to claim 1, characterized in that: The magnet positioning cylinder (3) has a positioning hole for the magnet (1) to be axially inserted into.

3. The installation tool for outer rotor motor magnetic steel according to claim 2, characterized in that: The magnets (1) are evenly distributed at equal intervals along the circumferential direction of the annular through cavity in the magnet sleeve (2), and the installation holes and the positioning holes are evenly distributed at equal intervals along the circumferential direction of the magnet positioning cylinder (3) on the magnet positioning cylinder (3).

4. The installation tool for outer rotor motor magnetic steel according to any one of claims 1 to 3, characterized in that: The magnet positioning cylinder (3) is fixedly connected to the magnet sleeve (2) at the first end through a positioning cylinder installation screw (31).

5. The installation tool for outer rotor motor magnetic steel according to any one of claims 1 to 3, characterized in that: The positioning block (4) is fixedly connected to the magnet sleeve (2) at the second end through a positioning block installation screw (41).

6. The installation tool for outer rotor motor magnetic steel according to any one of claims 1 to 3, characterized in that: The magnet positioning cylinder (3) is provided with a third threaded set screw (32) for radially pressing against the magnet (1) at the first end.

7. The installation tool for outer rotor motor magnetic steel according to claim 6, characterized in that: The positioning block (4) is provided with a first threaded set screw (42) for radially pressing against the magnet (1) at the second end.

8. The installation tool for outer rotor motor magnetic steel according to claim 7, characterized in that: The positioning block (4) is provided with a second threaded set screw (43) for axially pressing against the magnet (1) at the second end.

9. The installation tool for outer rotor motor magnetic steel according to claim 8, characterized in that: The third threaded set screw (32), the first threaded set screw (42) and the second threaded set screw (43) adopt spring set screws. The spring set screw includes a pressing head, a spring and an installation cavity. The spring connects the pressing head and the spring is fixed in the installation cavity.

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