Internal expansion type winding tool for self-bonding iron core of axial flux motor

Abstract

The utility model provides an axial magnetic flux motor self-bonding iron core internal expansion type winding tool, which belongs to the field of iron core internal expansion type winding, and comprises a centering disc, an adjusting mechanism, an expansion disc, an axial magnetic flux winding iron core, a baffle plate mechanism and a winding machine connecting shaft. Free expansion of the outer diameter is achieved through perfect matching of the taper of the inner wall of the tensioning disc and the taper of the outer surface of the conical disc, the free expansion strength can be improved to the maximum degree through a circle of through holes and expansion joints formed in the surface of the tensioning disc, and the tensioning disc can be fixed to the centering disc through a screw B; the outer diameter of the conical disc is directly attached to the inner diameter of the axial magnetic flux winding iron core, the inner diameter size of the iron core can be ensured to be accurate through the tensioning disc, the outer diameter size of the tensioning disc can be adjusted through vertical movement of the conical disc, and adjustment is convenient. The problem that in the prior art, when an iron core is assembled, the inner diameter size cannot reach the required accuracy can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of inner-expanding winding tooling for iron cores, and particularly relates to an inner-expanding winding tooling for a self-bonding iron core of an axial-flux motor. Background Art

[0002] An electric machine refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It is divided into a motor (symbol: M) and a generator (symbol: G).

[0003] The stator iron core of an electric machine is an important part of the magnetic circuit of the electric machine. Together with the rotor iron core and the air gap between the stator and the rotor, it forms a complete magnetic circuit of the electric machine. In an asynchronous motor, the magnetic flux in the stator iron core is alternating, thus generating iron core losses. The iron core losses include two parts: hysteresis loss and eddy current loss.

[0004] In the prior art, the inner diameter size of the iron core tooling cannot reach the required accuracy, and it cannot be adjusted according to different inner diameter sizes to support the production of iron cores with a unified size. Content of the Utility Model

[0005] The purpose of the utility model is to provide an inner-expanding winding tooling for a self-bonding iron core of an axial-flux motor, aiming to solve the problem that the inner diameter size of the iron core tooling in the prior art cannot reach the required accuracy.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An inner-expanding winding tooling for a self-bonding iron core of an axial-flux motor, comprising:

[0008] A centering disk;

[0009] An adjusting mechanism, arranged on the centering disk;

[0010] A tensioning disk, which is detachably connected to the centering disk, and the tensioning disk is sleeved on the adjusting mechanism;

[0011] An axial-flux winding iron core, which is movably sleeved on the tensioning disk;

[0012] A baffle mechanism, arranged on the centering disk, and the baffle mechanism is connected to the tensioning disk; and

[0013] A winding machine connecting shaft, arranged on the centering disk.

[0014] As a preferred solution of the present utility model, the adjusting mechanism includes a tapered disk, an adjusting washer, a screw rod and a central positioning member. The central positioning member is fixedly connected to the top of the centering disk. The tapered disk is movably sleeved on the circumferential surface of the central positioning member. Six screw rods are provided, and all six screw rods are threadedly connected to the top of the tapered disk, and all six screw rods rotate through the tapered disk and extend into the tapered disk. Four of the screw rods are threadedly connected to the central positioning member, and one end of the remaining two screw rods abuts against the top of the central positioning member. There are four adjusting washers, and the four adjusting washers are respectively movably sleeved on four of the screw rods, and each adjusting washer is located between the central positioning member and the upper inner wall of the tapered disk.

[0015] As a preferred solution of the present utility model, the baffle mechanism includes a baffle, screw A, a keyway and a clamping block. The baffle is detachably connected to the top of the centering disk through a plurality of screw A. The keyway is opened on the top of the centering disk. The clamping block is movably inserted into the keyway, and the clamping block is clamped to the bottom of the tensioning disk.

[0016] As a preferred solution of the present utility model, a plurality of through holes are opened on the top of the tensioning disk, and the plurality of through holes are distributed in a circumferential array. A telescopic slit is opened on the circumferential surface of the tensioning disk, and the telescopic slit communicates with one of the through holes.

[0017] As a preferred solution of the present utility model, the tensioning disk is movably inserted into the top of the centering disk, and the tensioning disk is detachably connected to the top of the centering disk through two screw B.

[0018] As a preferred solution of the present utility model, the winding machine connecting shaft is movably inserted into the bottom of the centering disk.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] 1. In this solution, the tensioning disk adopts an internal expansion design method. Through the perfect fit between the inner wall of the tensioning disk and the taper of the outer surface of the tapered disk, the free expansion and contraction of the outer diameter are realized. There is a circle of through holes and a telescopic slit on the surface of the tensioning disk, which can maximize the force of free expansion and contraction. The tensioning disk can be fixed on the centering disk through screw B, and its outer diameter is directly fitted with the inner diameter of the axial flux winding core. The setting of the tensioning disk can ensure that the inner diameter size of the core is made accurately.

[0021] 2. In this solution, by moving the cone disk up and down, the outer diameter of the tensioning disk can be adjusted, which can be adjusted to be larger or smaller. During the winding process, for the screw rod of the locking sleeve provided with an adjusting washer, it is ensured that the tensioning disk can play its role and expand. For the screw rod without an adjusting washer sleeved, the tensioning disk can be loosened, and the axial-flux winding core can be disassembled from the tooling. By using the adjusting washer, a positioning function is achieved, preventing the cone disk from being continuously pressed down. The adjusting washer can limit the screw rod from being screwed to the bottom, and when further screwed, the cone disk cannot go down either, thus controlling the outer diameter of the tensioning disk. When screwed to the bottom, it is the required size. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 is a cross-sectional view of the centering disk of the present invention;

[0025] Figure 3 is a cross-sectional view of the tensioning disk of the present invention;

[0026] Figure 4 is an exploded view of the tensioning disk of the present invention;

[0027] Figure 5 is a cross-sectional view of the adjusting washer of the present invention;

[0028] Figure 6 is a structural schematic diagram of the tensioning disk of the present invention.

[0029] In the figures: 1, centering disk; 2, baffle; 3, tensioning disk; 4, cone disk; 5, adjusting washer; 6, screw rod; 7, winding machine connecting shaft; 8, axial-flux winding core; 9, screw A; 10, center positioning member; 11, screw B; 12, keyway; 13, clamping block; 14, through hole; 15, expansion joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-6, the technical solution provided by this embodiment is as follows:

[0032] An internally expanding winding tool for an axial flux motor self-bonding iron core, which is composed of a centering disk 1, an adjusting mechanism, a tensioning disk 3, an axial flux winding iron core 8, a baffle mechanism, and a winding machine connecting shaft 7. The tensioning disk 3 is detachably connected to the centering disk 1. The tensioning disk 3 is sleeved on the adjusting mechanism. The axial flux winding iron core 8 is movably sleeved on the tensioning disk 3. The winding machine connecting shaft 7 is arranged on the centering disk 1.

[0033] In a specific embodiment of the present invention, the centering disk 1 is mainly used for positioning. The iron core reference is established on the centering disk 1. There are positioning grooves and positioning round holes on its reverse side, which are directly connected concentrically with the winding machine connecting shaft 7 as the source of power transmission. There is a stepped plane on the centering disk 1 for complete fitting contact with the baffle 2. The centering disk 1 has a long stepped circle, which can fully achieve concentric positioning with the conical disk 4. There are screw holes on the surface for connecting the conical disk 4 and adjusting the moving distance of the conical disk 4. The concentricity of all circles of the centering disk 1 needs to be controlled within 0.03 mm to ensure the rotation positioning accuracy. The stepped thickness is about 20.0 - 30.0 mm to ensure the strength of the centering disk 1.

[0034] Specifically, the adjusting mechanism is arranged on the centering disk 1. The adjusting mechanism includes a conical disk 4, adjusting washers 5, screws 6, and a central positioning member 10. The central positioning member 10 is fixedly connected to the top of the centering disk 1. The conical disk 4 is movably sleeved on the circumferential surface of the central positioning member 10. There are six screws 6. All six screws 6 are threadedly connected to the top of the conical disk 4, and all six screws 6 rotate through the conical disk 4 and extend into the conical disk 4. Four of the screws 6 are threadedly connected to the central positioning member 10, and one end of the remaining two screws 6 abuts against the top of the central positioning member 10. There are four adjusting washers 5. The four adjusting washers 5 are respectively movably sleeved on four of the screws 6. Each adjusting washer 5 is located between the central positioning member 10 and the upper inner wall of the conical disk 4.

[0035] In a specific embodiment of the present invention, the conical disk 4 is fixed on the centering disk 1 and rotates concentrically with the centering disk 1. By moving the conical disk 4 up and down, the outer diameter size of the tensioning disk 3 can be adjusted, which can be adjusted to be larger or smaller. During the winding process, lock the screws 6 sleeved with the adjusting washers 5 to ensure that the tensioning disk 3 can play a role in expanding. Adjust the screws 6 not sleeved with the adjusting washers 5 to loosen the tensioning disk 3, and the axial flux winding iron core 8 can be disassembled from the tooling. By using the adjusting washers 5, a positioning effect is achieved, and the conical disk 4 cannot be continuously pressed down. The adjusting washers 5 can limit the screws 6 from being screwed to the bottom, and then the conical disk 4 cannot go down either, controlling the outer diameter size of the tensioning disk 3. Screwing to the bottom is the required size.

[0036] Specifically, the baffle mechanism is arranged on the centering disk 1. The baffle mechanism is connected to the tensioning disk 3. The baffle mechanism includes a baffle 2, screws A9, a keyway 12, and a clamping block 13. The baffle 2 is detachably connected to the top of the centering disk 1 through a plurality of screws A9. The keyway 12 is opened on the top of the centering disk 1. The clamping block 13 is movably inserted into the keyway 12 and is clamped to the bottom of the tensioning disk 3.

[0037] In a specific embodiment of the present utility model, through the arrangement of the keyway 12 and the clamping block 13, the positioning of the tensioning disk 3 can be realized, preventing the tensioning disk 3 from rotating.

[0038] The main function of the baffle 2 is to support the axial-flux winding core 8. The working plane of the baffle 2 is in full contact with the plane of the axial-flux winding core 8. The flatness requirement of the surface is controlled within 0.02 mm. The maximum outer diameter of the baffle 2 needs to be greater than the maximum outer diameter of the winding core by about 20.0 mm on both sides.

[0039] Specifically, a plurality of through holes 14 are opened on the top of the tensioning disk 3. The plurality of through holes 14 are arranged in a circumferential array. An expansion joint 15 is opened on the circumferential surface of the tensioning disk 3. The expansion joint 15 is communicated with one of the through holes 14.

[0040] In a specific embodiment of the present utility model, a plurality of through holes 14 are opened on the top of the tensioning disk 3. The plurality of through holes 14 are arranged in a circumferential array. An expansion joint 15 is opened on the circumferential surface of the tensioning disk 3. The expansion joint 15 is communicated with one of the through holes 14.

[0041] Specifically, the tensioning disk 3 is movably inserted into the top of the centering disk 1, and the tensioning disk 3 is detachably connected to the top of the centering disk 1 through two screws B11.

[0042] In a specific embodiment of the present utility model, the plane of the tensioning disk 3 is completely attached to the centering disk 1. The tensioning disk 3 adopts an internal expansion design method. Through the perfect fit between the inner wall of the tensioning disk 3 and the taper of the outer surface of the taper disk 4, the free expansion and contraction of the outer diameter are realized. Through a circle of through holes 14 and expansion joints 15 on the surface of the tensioning disk 3, the force of free expansion and contraction can be maximally improved. The tensioning disk 3 can be fixed on the centering disk 1 through the screws B11. Its outer diameter is directly attached to the inner diameter of the axial-flux winding core 8. Through the setting of the tensioning disk 3, the inner diameter size of the core can be made precise. Since there will be a height difference during the coiling process, according to Archimedes' principle, the outer diameter of the tensioning disk 3 is designed with a spiral line to realize the height difference during the coiling process. The concentricity of the parts themselves needs to be controlled within 0.02 mm, and the wall thickness is about 15.0 - 20.0 mm on one side.

[0043] Specifically, the connecting shaft 7 of the winding machine is movably inserted into the bottom of the centering disk 1.

[0044] In a specific embodiment of the present utility model, the winding machine connecting shaft 7 is movably inserted into the bottom of the centering disk 1.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An internal expansion winding tool for a self-bonding core of an axial flux motor, characterized in that: include: Centering plate (1); An adjusting mechanism is arranged on the centering plate (1); A tensioning disk (3) which is detachably connected to the centering disk (1), the tensioning disk (3) being sleeved on the adjustment mechanism, and the tensioning disk (3) being used to movably sleeve the axial magnetic flux winding core (8); A baffle mechanism is provided on the centering plate (1), wherein the baffle mechanism is connected to the tensioning plate (3); and The winding machine connecting shaft (7) is arranged on the centering disk (1).

2. The internal expansion winding tooling for the self-bonding core of an axial flux motor according to claim 1, characterized in that: The adjustment mechanism comprises a cone disk (4), an adjustment washer (5), a screw (6) and a center positioning member (10), wherein the center positioning member (10) is fixedly connected to the top of the centering disk (1), the cone disk (4) is movably sleeved on the circumferential surface of the center positioning member (10), six screws (6) are provided, the six screws (6) are all threadedly connected to the top of the cone disk (4), and the six screws (6) are rotated to penetrate the cone disk (4) and extend into the cone disk (4), four of the screws (6) are threadedly connected to the center positioning member (10), and one end of the remaining two screws (6) abuts against the top of the center positioning member (10), and four of the adjustment washers (5) are movably sleeved on four of the screws (6), and each of the adjustment washers (5) is located between the center positioning member (10) and the upper inner wall of the cone disk (4).

3. The internal expansion winding tool for the self-bonding core of an axial flux motor according to claim 2, characterized in that: The baffle mechanism comprises a baffle (2), a screw A (9), a keyway (12) and a clamping block (13); the baffle (2) is detachably connected to the top of the centering plate (1) via a plurality of screws A (9); the keyway (12) is provided at the top of the centering plate (1); the clamping block (13) is movably inserted into the keyway (12), and the clamping block (13) is clamped to the bottom of the tensioning plate (3).

4. The internal expansion winding tool for the self-bonding core of an axial flux motor according to claim 3, characterized in that: A plurality of through holes (14) are provided on the top of the tensioning disk (3), the plurality of through holes (14) being distributed in a circumferential array, and an expansion joint (15) is provided on the circumferential surface of the tensioning disk (3), the expansion joint (15) being in communication with one of the through holes (14).

5. The internal expansion winding tooling for the self-bonding core of an axial flux motor according to claim 4, characterized in that: The tensioning plate (3) is movably plugged into the top of the centering plate (1), and the tensioning plate (3) is detachably connected to the top of the centering plate (1) via two screws B (11).

6. The internal expansion winding tool for the self-bonding core of an axial flux motor according to claim 5, characterized in that: The winding machine connecting shaft (7) is movably plugged into the bottom of the centering disc (1).

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