Surface-mounted permanent magnet motor rotor magnetic steel assembly tool

Abstract

The utility model relates to a surface-mounted permanent magnet motor rotor magnetic steel assembly tool comprising a fixing mechanism used for supporting and fixing a rotor; the guide mechanism is arranged on the rotor in a sleeving manner so as to perform assembly guide on the magnetic steel; and the propelling mechanism is arranged at one end far away from the rotor so as to push the magnetic steel to the rotor. The rotor is fixed, guided and assembled by integrating the fixing mechanism, the guiding mechanism and the propelling mechanism, so that the magnetic steel is stably and reliably moved to the rotor, and convenient installation of the magnetic steel is realized. In the installation process, damage to the magnetic steel or other safety accidents caused by the problem of strong magnetism can be avoided, the assembly safety is effectively improved, and the material loss is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to surface mount permanent magnet motor rotor technical field, especially surface mount permanent magnet motor rotor magnetic steel assembly tool. BACKGROUND

[0002] The air gap magnetic field in the motor for electromechanical energy conversion can be generated by electric excitation or permanent magnet. The first motor in the world is a permanent magnet motor, but the magnetic properties of the permanent magnet material used at that time are very low, and it is soon replaced by an electric excitation motor.

[0003] In recent decades, with the advent of aluminum-nickel-cobalt permanent magnet, ferrite permanent magnet, rare earth permanent magnet and the rapid development of software and hardware technology, many electric excitation motors have been replaced by permanent magnet excitation. Permanent magnet motor has been widely used in industrial and agricultural production, aerospace, transportation and daily life due to its lightweight, small size, low noise, long life, precise control, high efficiency and energy saving, and plays an increasingly important role in energy saving and emission reduction and realization of double carbon target, and is an important source of green power in the future.

[0004] Permanent magnet motor is mainly composed of rotor, stator, bearing and shell, and can be divided into surface mount and embedded type according to the installation mode of permanent magnet. Since the magnetic steel has been magnetized before assembly, it has strong magnetism, and there is significant repulsion force between the magnetic steels with the same polarity. In the structure of surface mount permanent magnet motor, the magnetic steels are usually evenly distributed on the outer surface of the rotor core in the form of tiles or other regular shapes. During the assembly of the magnetic steels, the repulsion force between the magnetic steels makes it difficult to manually position and place the single magnetic steel, and the assembly is difficult, and the magnetic steel is easy to be crushed or damaged, and the magnetic steel is easy to be bounced off, resulting in scrap of the magnetic steel and injury to the personnel. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a surface mount permanent magnet motor rotor magnetic steel assembly tool, which solves the problem of difficult assembly of the surface mount permanent magnet motor rotor magnetic steel in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] The utility model provides a surface mount permanent magnet motor rotor magnetic steel assembly tool, which comprises:

[0008] The fixing mechanism is used for supporting and fixing the rotor;

[0009] The guide mechanism is sleeved on the rotor to guide the assembly of the magnetic steel;

[0010] The advancing mechanism is arranged at one end away from the rotor to push the magnetic steel to the rotor.

[0011] Further, the fixing mechanism comprises a fixing base, a first fixing part and a second fixing part arranged on the fixing base.

[0012] The first fixing part is used for fixing one end of the rotor, and the second fixing part is used for fixing the other end of the rotor.

[0013] Further, the first fixing part comprises a first upper fixing block and a first lower fixing block, an upper fixing groove is arranged on the first upper fixing block, and a lower fixing groove is arranged on the first lower fixing block.

[0014] Further, a second fixing groove is arranged on the second fixing part.

[0015] Further, a third fixing part is further arranged on the fixing base and used for cooperating with the advancing mechanism to limit and fix the advancing mechanism.

[0016] Further, the third fixing part comprises a lifting plate and fixing plates arranged on both sides of the lifting plate, the lifting plate is liftably connected with the fixing plates, and a threaded through hole is arranged on the lifting plate and used for allowing the advancing mechanism to pass through.

[0017] Further, the advancing mechanism comprises a threaded push rod threadedly matched with the threaded through hole, a push rod wrench integrally connected with the threaded push rod at one end of the threaded push rod, and a push rod handle arranged on the push rod wrench.

[0018] Further, the guiding mechanism comprises a guiding sleeve, a plurality of guiding blocks arranged in the guiding sleeve, and a diameter expanding sleeve abutting against end faces of the guiding blocks, and the guiding sleeve and the guiding blocks are detachably connected through bolts.

[0019] Further, an inner diameter of the guiding sleeve is matched with an outer diameter of the guiding blocks, and an inner diameter of the guiding blocks is matched with an outer diameter of the diameter expanding sleeve.

[0020] Further, the guiding blocks are consistent with the outer shape structure of the magnetic steel, and an axial length of the guiding blocks is greater than or equal to an axial length of the magnetic steel.

[0021] Thanks to the above technical scheme, the utility model has the following advantages compared with the prior art:

[0022] The utility model discloses a surface-mounted permanent magnet motor rotor magnetic steel assembly tool, integrates fixing mechanism, guiding mechanism and advancing mechanism to fix, guide and assemble the rotor, and then stably and reliably moves the magnetic steel to the rotor, realizes the convenient installation of the magnetic steel. In the installation process, the magnetic steel is not damaged or other safety accidents are caused due to strong magnetic problems, the assembly safety is effectively improved, and the material loss is reduced. Attached Figure Description

[0023] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0024] Figure 1 This is a schematic diagram (I) of a surface-mount permanent magnet motor rotor magnet assembly fixture provided by this utility model.

[0025] Figure 2 This is a schematic diagram (II) of the structure of a surface-mount permanent magnet motor rotor magnet assembly fixture provided by this utility model.

[0026] Figure 3 This is a schematic diagram (III) of the structure of a surface-mount permanent magnet motor rotor magnet assembly fixture provided by this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the guide block provided by this utility model;

[0028] The reference numerals in the attached figures are explained as follows:

[0029] 1. Rotor; 101. Shaft; 102. Rotor core; 103. Magnet; 104. Retaining ring; 2. Fixing mechanism; 201. Fixing base; 202. First fixing component; 2020. First upper fixing block; 2021. First lower fixing block; 2022. Upper fixing groove; 2023. Lower fixing groove; 203. Second fixing component; 2030. Second fixing groove; 204. Third fixing component; 2040. Lifting plate; 2041. Fixing plate; 3. Guiding mechanism; 301. Guide sleeve; 302. Guide block; 303. Expanding diameter sleeve; 4. Propulsion mechanism; 401. Threaded push rod; 402. Push rod wrench; 403. Push rod handle. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described 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 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.

[0031] See Figures 1 to 4 The surface-mount permanent magnet motor rotor magnet assembly fixture provided by this utility model includes a fixing mechanism 2, a guiding mechanism 3, and a propulsion mechanism 4.

[0032] Specifically, the surface-mounted permanent magnet motor rotor magnetic steel assembly tool is used for stably mounting the magnetic steel on the rotor 1. Generally, the rotor 1 comprises a rotating shaft 101, a rotor core 102 penetrating the rotating shaft 101, a magnetic steel 103 arranged on the outer wall of the rotor core 102, and a check ring 104 arranged at one end of the rotor core 102.

[0033] For the fixing mechanism 2, in the embodiment of the utility model, the fixing mechanism 2 is arranged to fix and support the rotor 1, so as to ensure the stability of the rotor 1 during the assembly of the magnetic steel 103 in the rotor 1.

[0034] Specifically, the fixing mechanism 2 comprises a fixing seat 201, a first fixing member 202 and a second fixing member 203 arranged on the fixing seat 201. The first fixing member 202 is arranged to fix one end of the rotor 1 close to the check ring 104, and the second fixing member 203 is arranged to fix the other end of the rotor 1 away from the check ring 101. The first fixing member 202 and the second fixing member 203 are arranged to limit and fix the rotor 1. In the embodiment of the utility model, the material of the fixing mechanism 2 is non-magnetic material. The non-magnetic material does not generate significant magnetic field interference, which helps to keep the magnetic field around the rotor 1 uniform, and the non-magnetic material does not have hysteresis phenomenon and is light in weight.

[0035] For the first fixing member 202, in the embodiment of the utility model, a first upper fixing block 2020 and a first lower fixing block 2021 fixedly connected with the first upper fixing block 2020 by bolts are arranged. An upper fixing groove 2022 is arranged on the first upper fixing block 2020, and a lower fixing groove 2023 is arranged on the first lower fixing block 2021. The upper fixing groove 2022 and the lower fixing groove 2023 are coaxially arranged and oppositely arranged to limit and fix one end of the rotor 1 close to the check ring 104. The upper part and the lower part of the rotor 1 are fixed, so as to prevent the rotor 1 from moving or shifting during the assembly of the magnetic steel 103, and to affect the assembly effect.

[0036] For the second fixing member 203, a second fixing groove 2030 is arranged on the second fixing member 203 to limit and fix the other end of the rotor 1 away from the check ring 104. Unlike the first fixing member 202, the second fixing member 203 is a fixing block with a semicircular groove, which is arranged to stably fix the non-check ring end of the rotor 1 and provide assembly space for the assembly of the magnetic steel 103.

[0037] In addition, in the embodiment of the utility model, a third fixing member 204 is arranged on the fixing seat 201 to cooperate with the pushing mechanism 4 to limit and fix the pushing mechanism 4. For the pushing mechanism 4, in the embodiment of the utility model, the pushing mechanism 4 is arranged at the end away from the check ring 104 to push the magnetic steel 103 to the rotor core 102.

[0038] Specifically, the third fixing member 204 comprises a fixing plate 2041 and lifting plates 2040 arranged on both sides of the fixing plate 2041. Threaded holes are formed in the lifting plates 2040, which are connected with the fixing plate 2041 and can be adjusted in lifting. Threaded through holes are also formed in the lifting plates 2040 for the aforementioned advancing mechanism 4 to pass through. The advancing mechanism 4 at the threaded through holes can be moved up and down by means of the lifting of the lifting plates 2040 on the aforementioned fixing plate 2041, so as to realize the adjustment of the height.

[0039] For the aforementioned advancing mechanism 4, the advancing mechanism 4 comprises a threaded push rod 401 matched with the aforementioned threaded through hole, a push rod wrench 402 arranged at one end of the threaded push rod 401, and a push rod handle 403 arranged on the push rod wrench 402. The threaded push rod 401 is screwed with the aforementioned threaded through hole by rotating the aforementioned threaded push rod 401 through the push rod wrench 402 or the push rod handle 403, so as to realize the advancing and retreating of the threaded push rod 401 at the threaded through hole, that is, to realize the advancing operation of the magnetic steel 103 and the retreating operation after the advancing is completed.

[0040] Of course, it is not limited to using the aforementioned advancing mode to complete the advancing operation of the magnetic steel 103, and any other mode capable of enabling the advancing mechanism 4 to maintain stable advancing function during the assembly of the magnetic steel 103 should be covered within the protection scope of the utility model.

[0041] In addition, for the aforementioned threaded push rod 401, the length thereof is set to be long enough, and the head of the push rod is also made of non-magnetic material, and the push head is a cylindrical shape. The cross-sectional diameter of the cylindrical push head is matched with the radial width of the magnetic steel 103, so as to ensure that the threaded push rod 401 can steadily advance during the pushing of the magnetic steel 103, and the magnetic steel 103 will not be turned over and the like.

[0042] In the embodiment of the utility model, a hexagonal head is arranged at one end of the aforementioned threaded push rod 401 away from the magnetic steel 103, and the push rod wrench 402 is connected to the hexagonal head, so that when the threaded push rod 401 is pushed or retreated by means of the push rod handle 403, additional pushing force can also be applied by means of the push rod wrench 402, so that the advancing operation and the retreating operation of the magnetic steel 103 are more smooth.

[0043] For the aforementioned guiding mechanism 3, in the embodiment of the utility model, the guiding mechanism 3 is arranged on the aforementioned rotor core 102 to guide the assembly of the magnetic steel 103. Specifically, the guiding mechanism 3 comprises a guiding sleeve 301, a plurality of guiding blocks 302 arranged in the guiding sleeve 301, and a diameter expanding sleeve 303 abutting against the end face of the guiding block 302. The guiding sleeve 301, the guiding block 302 and the diameter expanding sleeve 303 are also made of non-magnetic material.

[0044] The guiding sleeve 301 is provided with a threaded hole, the guiding block 302 is provided with a blind hole, a bolt is arranged in the threaded hole, the end of the bolt is inserted into the blind hole, and the guiding block 302 is tightly attached to the rotating shaft 101.

[0045] The inner diameter of the guiding sleeve 301 is matched with the outer diameter of the guiding block 302, so that the guiding block 302 can be arranged in the guiding sleeve 301. In addition, the length of the guiding block 302 can be consistent with the length of the guiding sleeve 301, or the length of the guiding block 302 can be slightly longer than the length of the guiding sleeve 301. The guiding block 302 has the same shape as the magnetic steel 103, but the axial length of the guiding block 302 is greater than or equal to the axial length of the magnetic steel 103.

[0046] In fact, by Figure 2 and Figure 4 It can be known that the number of the guiding blocks 302 is three, and the number of the magnetic steels 103 to be installed is four, that is, the number of the guiding blocks 302 is the number of the magnetic steels 103-1. Therefore, when the guiding blocks 302 are arranged, the number of the magnetic steels 103 can be adjusted. When the magnetic steel 103 needs to be installed at a position, the guiding block 302 corresponding to the position of the magnetic steel 103 is removed from the guiding sleeve 301 to form a slot for accommodating the magnetic steel 103.

[0047] The diameter expanding sleeve 303 is arranged in abutment with the end face of the guiding block 302 to meet the diameter expanding requirement when the magnetic steel 103 is assembled. The inner diameter of the guiding block 302 is matched with the outer diameter of the diameter expanding sleeve 303.

[0048] Taking the four-piece magnetic steel assembly as an example, before the axial assembly of the magnetic steel 103 is started, the rotor 1 is fixed by the fixing mechanism 2, and the end of the rotor 1 close to the stop ring 104 is fixed to prevent the rotor 1 from being displaced when the magnetic steel 103 is installed. Then, the guiding mechanism 3 is sleeved on the rotor 1 from the other end, and the guiding block 302 is abutted to the stop ring 104, and the bolt on the guiding sleeve 301 is tightened to make the guiding block 302 close to the rotor core 102. Then, the diameter expanding sleeve 303 is arranged on the right side of the shaft section where the magnetic steel 103 is arranged, the height of the diameter expanding sleeve 303 is matched with the shaft section where the magnetic steel 103 is arranged, the diameter expanding sleeve 303 can protect the shaft section, and the diameter expanding sleeve 303 can provide convenience for the subsequent installation of the magnetic steel 103. Finally, the height of the lifting plate 2040 is adjusted to make the push head of the threaded push rod 401 and the guiding block 302 be on the same horizontal line.

[0049] In the assembly of the magnetic steel 103, first, the magnetic steel 103 is placed on the expanding sleeve 303, and the position of the magnetic steel 103 corresponds to the 1 / 4 slot reserved by the guide mechanism 3. Then, the threaded push rod 401 is screwed by using the push rod wrench 402 or the push rod handle 403, so that the push head of the threaded push rod 401 is in contact with the magnetic steel 103 and gradually pushes the magnetic steel 103 into the guide sleeve 301, until the magnetic steel 103 is completely pressed against the retaining ring 104 and adheres to the shaft section of the rotor core 102. Finally, the threaded push rod 401 is unscrewed, and the assembly of the first magnetic steel 103 is completed.

[0050] Further, the second magnetic steel 103 is assembled. First, any bolt on the guide sleeve 301 is unscrewed, and the corresponding guide block 302 is pulled out, so that 1 / 4 space is reserved. The second magnetic steel 103 is pushed into the guide sleeve 301 by the pushing mechanism 4 in the same way as described above, and the third and fourth magnetic steels 103 are assembled in the same way.

[0051] After all the magnetic steels 103 are installed in place, the guide mechanism 3 is removed, and the fixing mechanism 2 and the pushing mechanism 4 are removed, and the entire assembly process is completed.

[0052] In summary, the utility model discloses a surface-mounted permanent magnet motor rotor magnetic steel assembly tool, and the rotor is fixed, guided and assembled by integrating the fixing mechanism, the guide mechanism and the pushing mechanism, so that the magnetic steel is stably and reliably moved to the rotor core, and the convenient installation of the magnetic steel is realized. During installation, the magnetic steel is not damaged or other safety accidents are caused due to strong magnetism, the assembly safety is effectively improved, and material loss is reduced.

[0053] The above embodiments are only for describing the technical concept and characteristics of the utility model, and the purpose is to enable persons skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. A surface-mounted permanent magnet motor rotor magnet assembly tool, characterized in that, The utility model relates to a magnetic steel assembling device, which comprises a fixing mechanism (2) for supporting and fixing a rotor, a guide mechanism (3) sleeved on the rotor to guide the assembly of magnetic steel, and a pushing mechanism (4) arranged at one end away from the rotor to push the magnetic steel to the rotor. The fixing mechanism (2) comprises a fixing seat (201) and first and second fixing members (202 and 203) arranged on the fixing seat (201). The first fixing member (202) is used for fixing one end of the rotor, and the second fixing member (203) is used for fixing the other end of the rotor. The first fixing member (202) comprises a first upper fixing block (2020) and a first lower fixing block (2021), the first upper fixing block (2020) is provided with an upper fixing groove (2022), the first lower fixing block (2021) is provided with a lower fixing groove (2023), and the upper fixing groove (2022) and the lower fixing groove (2023) are coaxially arranged.

2. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling apparatus according to claim 1, characterized in that, The second fixing member (203) is provided with a second fixing groove (2030). The fixing seat (201) is further provided with a third fixing member (204) for cooperation with the pushing mechanism (4) to limit and fix the pushing mechanism (4).

3. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling according to claim 2, characterized in that, The third fixing member (204) comprises a lifting plate (2040) and fixing plates (2041) arranged on both sides of the lifting plate (2040), the lifting plate (2040) is connected to the fixing plates (2041) in a lifting manner, and the lifting plate (2040) is provided with a threaded through hole for the pushing mechanism (4) to pass through.

4. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling apparatus according to claim 2, characterized in that, The pushing mechanism (4) comprises a threaded push rod (401) threadedly matched with the threaded through hole, a push rod wrench (402) arranged at one end of the threaded push rod (401) and integrally connected with the threaded push rod (401), and a push rod handle (403) arranged on the push rod wrench (402).

5. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling apparatus according to claim 2, characterized in that, The guide mechanism (3) comprises a guide sleeve (301), a plurality of guide blocks (302) arranged in the guide sleeve (301), and a diameter expansion sleeve (303) abutting against end faces of the guide blocks (302).

6. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling apparatus according to claim 5, characterized in that, The inner diameter of the guide sleeve (301) is matched with the outer diameter of the guide blocks (302), and the inner diameter of the guide blocks (302) is matched with the outer diameter of the diameter expansion sleeve (303).

7. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling according to claim 6, characterized in that, The guide blocks (302) are consistent with the outer shape structure of the magnetic steel, and the axial length of the guide blocks (302) is greater than or equal to the axial length of the magnetic steel.

8. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling apparatus according to claim 1, characterized in that, ​ 9. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling of claim 8, wherein, ​ 10. The surface-mounted permanent-magnet motor rotor magnetic steel assembling tooling apparatus according to claim 8, characterized in that, ​

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