Magnetic steel installation auxiliary device

Abstract

The utility model provides a magnetic steel installation auxiliary device which comprises an annular plate, an annular positioning pipe is arranged on the lower side of the middle of the annular plate, and eight double-V-shaped guide groove sets distributed in the circumferential direction of the annular plate at equal intervals are formed in the edge of the outer side of the annular plate. Each double-V-shaped guide groove set comprises a set of small V-shaped guide grooves and a set of large V-shaped guide grooves, the small V-shaped guide grooves are located on the outer sides of the corresponding large V-shaped guide grooves, the small V-shaped guide grooves comprise two small guide grooves distributed in a V shape, the large V-shaped guide grooves comprise two large guide grooves distributed in a V shape, and the large guide grooves and the small guide grooves vertically penetrate through the annular plate. A magnetic pole direction indicating arrow distributed in the radial direction of the annular plate is arranged on the inner side of each double-V-shaped guide groove set, the directions of every two adjacent magnetic pole direction indicating arrows are opposite, and the annular plate is made of aluminum alloy. The auxiliary device can assist in improving the efficiency of manually inserting the magnetic steel on the motor rotor.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor assembly technology, specifically to an auxiliary device for magnet installation. Background Technology

[0002] Currently, a top view of an existing built-in double V-type motor rotor is shown in the attached figure. Figure 3 As shown, eight sets of double V-shaped magnet slots are provided on the built-in double V-shaped motor rotor. Each set of double V-shaped magnet slots includes a set of small V-shaped magnet slots and a set of large V-shaped magnet slots. The small V-shaped magnet slots are located outside the large V-shaped magnet slots. The small V-shaped magnet slots include two small magnet slots distributed in a V-shape, and the large V-shaped magnet slots include two large magnet slots distributed in a V-shape. The small magnet slots are used to insert the corresponding small magnets, and the large magnet slots are used to insert the corresponding large magnets. Currently, the insertion of large and small magnets is still mostly done manually. Because the magnetic pole directions of the magnets in adjacent sets of double V-shaped magnet slots need to be kept opposite, the magnetic pole direction of the magnets needs to be corrected when inserting them manually. Since there are no magnetic pole direction indicators on the rotor, the magnetic pole direction of the magnets in adjacent sets of double V-shaped magnet slots needs to be checked repeatedly when inserting the magnets, resulting in low magnet slot efficiency. At the same time, because the magnets are magnetic, when the magnets are attracted to the rotor surface, it is difficult to pick them up again to adjust the magnetic pole direction due to the magnetic attraction. Utility Model Content

[0003] The purpose of this invention is to provide a magnet installation auxiliary device, which can help improve the efficiency of manually inserting magnets into the motor rotor.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a magnetic steel installation auxiliary device includes an annular plate, an annular positioning tube is provided on the lower side of the middle part of the annular plate, and eight sets of double V-shaped guide grooves are provided on the outer edge of the annular plate, which are evenly distributed along the circumference of the annular plate. Each set of double V-shaped guide grooves includes a set of small V-shaped guide grooves and a set of large V-shaped guide grooves. The small V-shaped guide grooves are located outside the corresponding large V-shaped guide grooves. The small V-shaped guide grooves include two small guide grooves distributed in a V shape, and the large V-shaped guide grooves include two large guide grooves distributed in a V shape. The large guide grooves and small guide grooves penetrate the annular plate vertically. A magnetic pole direction indicator arrow is provided on the inner side of each set of double V-shaped guide grooves, which is distributed along the radial direction of the annular plate. The two adjacent magnetic pole direction indicator arrows point in opposite directions. The annular plate is made of aluminum alloy.

[0005] Preferably, a positioning post is provided at the bottom of the annular plate. The positioning post is adapted to two circular holes on the rotor of the double V-shaped structure motor. After the annular positioning tube and the positioning post are respectively inserted into the center hole and the corresponding circular hole on the rotor of the double V-shaped structure motor, the small guide groove is vertically connected to the small magnet slot on the rotor of the double V-shaped structure motor, and the large guide groove is vertically connected to the large magnet slot on the rotor of the double V-shaped structure motor.

[0006] Furthermore, the thickness of the annular plate is half the thickness of the corresponding double V-shaped structure motor rotor.

[0007] Furthermore, two auxiliary gripping holes are provided on the outer side of the middle part of the annular plate in a symmetrical arrangement.

[0008] Furthermore, an arc-shaped guide slope is provided at the bottom outer edge of the annular positioning tube.

[0009] Furthermore, the bottom of the positioning post is conical.

[0010] Furthermore, a straight guide slope is provided on the upper outer edge of both the small guide groove and the large guide groove.

[0011] The beneficial effects of this utility model are as follows: This utility model has a simple structure and is convenient to manufacture; by utilizing the cooperation of the annular positioning tube and the positioning column, precise vertical connection between the small guide groove and the small magnet groove, and between the large guide groove and the large magnet groove, can be achieved. Based on this, the direction indicated by the magnetic pole direction arrow can be used to quickly adjust the magnetic pole direction of the magnet. The magnet with the adjusted magnetic pole direction can be quickly inserted into the corresponding magnet groove using the corresponding guide groove, thereby improving the magnet's slotting efficiency. Because the annular plate is made of aluminum alloy, its magnetic permeability is low, resulting in a small magnetic force between the magnet, the annular plate, and the rotor when the magnet is in contact with the annular plate, making it easier to lift the magnet and adjust its magnetic pole direction. The arc-shaped guide slope and the conical bottom of the positioning column facilitate the smooth installation of the annular plate onto the motor rotor. The straight guide slope facilitates the smooth insertion of the magnet into the corresponding guide groove, and the two auxiliary gripping holes facilitate the smooth removal of the annular plate from the motor rotor. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a bottom view schematic diagram of the overall structure of this utility model;

[0015] Figure 3 Front view of an existing double V-type motor rotor;

[0016] In the diagram: 1. Annular plate, 11. Annular positioning tube, 111. Arc-shaped guide slope, 12. Positioning column, 13. Double V-shaped guide groove group, 131. Small V-shaped guide groove, 1311. Small guide groove, 132. Large V-shaped guide groove, 1321. Large guide groove, 2. Double V-shaped motor rotor, 21. Double V-shaped magnet slot group, 211. Small magnet slot, 212. Large magnet slot, 22. Circular hole. Detailed Implementation

[0017] The following will describe specific embodiments and appendices. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0018] This utility model provides a magnetic steel installation auxiliary device (such as...) Figure 1As shown, the device includes an annular plate 1, with an annular positioning tube 11 disposed on the lower side of the middle portion of the annular plate 1. In practical applications, after inserting the annular plate 1 into the central hole of the double V-shaped motor rotor 2 using the annular positioning tube 11, the annular positioning tube 11 and the double V-shaped motor rotor 2 can be coaxially distributed. To facilitate the smooth insertion of the annular positioning tube 11 into the central hole of the double V-shaped motor rotor 2, an arc-shaped guide slope 111 is provided on the outer edge of the bottom of the annular positioning tube 11. The arc-shaped guide slope 111 guides the annular positioning tube 11 when it is inserted into the central hole. Eight sets of equally spaced features are provided at the outer edge of the annular plate 1 along the circumference of the annular plate. The double V-shaped guide groove group 13 is distributed at intervals. In practical applications, the double V-shaped guide groove group 13 corresponds to the double V-shaped magnet slot group 21 distributed on the corresponding double V-shaped motor rotor 2. Each double V-shaped guide groove group 13 includes a set of small V-shaped guide grooves 131 and a set of large V-shaped guide grooves 1322. The small V-shaped guide grooves 131 are located outside the corresponding large V-shaped guide grooves 132. The small V-shaped guide grooves 1311 include two small guide grooves 1311 distributed in a V-shape. The large V-shaped guide grooves 132 include two large guide grooves 1321 distributed in a V-shape. The large guide grooves 1321 and the small guide grooves 1311 both penetrate vertically through the annular structure. In practical applications, when the small guide groove 1311 and the corresponding small magnet slot 211 are precisely aligned vertically, the small magnet can be directly inserted into the small magnet slot 211. Similarly, when the large guide groove 1321 and the corresponding large magnet slot 212 are precisely aligned vertically, the large magnet can be directly inserted into the large magnet slot 212. This allows for the installation of magnets in both the small and large magnet slots 211 and 212. On the inner side of each set of double V-shaped guide grooves 13, a magnetic pole direction indicator arrow 14 is provided, distributed radially along the annular plate 1. Adjacent magnetic pole direction indicator arrows... The directions of 14 are opposite. In practical applications, magnets are equipped with magnetic pole direction indicator arrows. When installing magnets, the magnetic pole direction indicator arrows on the magnets are aligned with the magnetic pole direction indicator arrow 14 to complete the magnetic pole direction adjustment. The above-mentioned magnet adjustment operation is convenient and does not require repeated comparison of the magnetic pole direction of the magnets in the corresponding double V-shaped guide groove group 13, thereby improving the magnetic pole direction adjustment efficiency. The annular plate 1 is made of aluminum alloy. Aluminum alloy has low magnetic permeability. Therefore, when the magnet is attracted to the annular plate 1, the magnetic attraction between the magnet, the annular plate 1, and the double V-shaped motor rotor 2 is small, making it easy to pick up the magnet again and readjust the magnetic pole direction.Furthermore, to facilitate the smooth pressing of the magnet from the small guide groove 1311 or the large guide groove 1321 into the corresponding small magnet slot 211 or large magnet slot 212, the thickness of the annular plate 1 is made to be half the thickness of the corresponding double V-shaped structure motor rotor 2. When the upper part of the magnet is level with the upper part of the annular plate 1, the lower half of the magnet has already been inserted into the corresponding magnet slot, thus achieving smooth insertion of the magnet into the corresponding magnet slot.

[0019] Based on the above embodiments, in order to facilitate the precise vertical alignment of the double V-shaped guide groove group 13 and the double V-shaped magnet slot group 21 after the annular plate 1 is inserted into the double V-shaped structure motor rotor 2, a positioning post 12 is provided at the bottom of the annular plate 1. The positioning post 12 is adapted to the two circular holes 22 on the double V-shaped structure motor rotor 2. After the annular positioning tube 11 and the positioning post 12 are respectively inserted into the center hole and the corresponding circular hole 22 on the double V-shaped structure motor rotor 2, the small guide groove 1311 is vertically aligned with the small magnet slot 211 on the double V-shaped structure motor rotor 2, and the large guide groove 1321 is vertically aligned with the large magnet slot 212 on the double V-shaped structure motor rotor 2.

[0020] When using this utility model to assist in the slotting operation of the magnet, the annular positioning tube 11 and the positioning post 12 are directly inserted into the central hole and a circular hole 22 on the double V-shaped structure motor rotor 2. Then, the slotting operation of the magnet can be performed. Since the two circular holes 22 are symmetrically distributed from left to right, and the double V-shaped magnet slot groups 21 on both sides of the central hole of the double V-shaped structure motor rotor 2 are also symmetrically distributed from left to right, the positioning post 12 will not affect the comparison of the magnetic pole direction of the magnet no matter which circular hole 22 it is inserted into. Furthermore, in order to facilitate the smooth insertion of the positioning post 12 into the corresponding circular hole 22, the bottom of the positioning post 12 is made conical.

[0021] After all the magnets have been inserted, in order to facilitate the removal of the annular plate 1 from the double V-shaped motor rotor 2, two auxiliary gripping holes 15 are provided on the outer side of the middle of the annular plate 1 in a symmetrical arrangement. After inserting two fingers into the auxiliary gripping holes 15, the annular plate 1 is gripped and pulled upwards to remove it.

[0022] To facilitate the smooth insertion of the magnet into the corresponding small guide groove 1311 or large guide groove 1321, a straight guide slope is provided on the upper outer edge of both the small guide groove 1311 and the large guide groove 1321. When the bottom of the magnet contacts the straight guide slope, as the magnet moves downward, the straight guide slope guides the lower part of the magnet towards the center of the small guide groove 1311 or the large guide groove 1321.

[0023] The process of quickly inserting magnets into the double V-shaped structure motor rotor 2 using this utility model is as follows: First, align the annular positioning tube 11 and positioning post 12 of the annular plate 1 with the center hole and a circular hole 22 of the double V-shaped structure motor rotor 2 vertically. Then, insert the annular plate 1 directly into the upper part of the double V-shaped structure motor rotor 2. Next, pick up the magnet and adjust its installation direction using the magnetic pole direction indicator arrow 14. After adjusting the direction, insert the magnet directly into the corresponding small guide groove 1311 or large guide groove 1321 and press the magnet to insert it into the corresponding small magnet slot 211 or large magnet slot 212. Repeat the above magnet installation method to complete all magnet insertion. Then, remove the annular plate 1 from the double V-shaped structure motor rotor 2. After removing the double V-shaped structure motor rotor 2, press down all the magnets again so that the magnets are fully inserted into the corresponding magnet slots.

[0024] In this utility model, "upper", "lower", "front", "back", "left", and "right" are all relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as limitations on the scope of protection.

[0025] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0026] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A magnetic steel mounting auxiliary device characterized by, The application relates to a ring-shaped plate, a ring-shaped positioning tube is arranged at the middle lower side of the ring-shaped plate, eight groups of double-V-shaped guide grooves are arranged at the outer side edges of the ring-shaped plate and are equidistantly distributed along the circumferential direction of the ring-shaped plate, each group of the double-V-shaped guide grooves comprises a group of small V-shaped guide grooves and a group of large V-shaped guide grooves, the small V-shaped guide grooves are located at the outer sides of the corresponding large V-shaped guide grooves, the small V-shaped guide grooves comprise two small guide grooves which are V-shapedly distributed, the large V-shaped guide grooves comprise two large guide grooves which are V-shapedly distributed, the large guide grooves and the small guide grooves all vertically penetrate the ring-shaped plate, a magnetic pole direction indicating arrow is arranged at the inner side of each group of the double-V-shaped guide grooves and is distributed along the radial direction of the ring-shaped plate, the directions of the two adjacent magnetic pole direction indicating arrows are opposite, and the ring-shaped plate is made of an aluminum alloy material.

2. The magnetic steel mounting auxiliary device according to claim 1, characterized in that, A positioning column is arranged at the bottom of the ring-shaped plate and is matched with two circular holes on a double-V-shaped structure motor rotor, after the ring-shaped positioning tube and the positioning column are respectively inserted into the central hole and the corresponding circular hole on the double-V-shaped structure motor rotor, the small guide grooves vertically penetrate the small magnetic steel insertion grooves on the double-V-shaped structure motor rotor in correspondence, and the large guide grooves vertically penetrate the large magnetic steel insertion grooves on the double-V-shaped structure motor rotor in correspondence.

3. The apparatus of claim 2, wherein the magnetizing ring is made of a material having a magnetic permeability of at least 1000. The thickness of the ring-shaped plate is 1 / 2 of the thickness of the corresponding double-V-shaped structure motor rotor.

4. The magnetic steel mounting aid of any one of claims 2-3, wherein, Two left-right symmetrically distributed auxiliary gripping holes are arranged at the middle outer side of the ring-shaped plate.

5. The apparatus of claim 4 wherein: An arc-shaped guide slope is arranged at the bottom outer edge of the ring-shaped positioning tube.

6. The magnetic steel mounting aid of claim 5, wherein The bottom of the positioning column is conical.

7. The apparatus of claim 6 wherein: A flat guide slope is arranged on the upper outer edge of the small guide grooves and the large guide grooves.

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