A push head structure

Abstract

The utility model relates to the technical field of stator embedded wire, specifically relates to a push head structure. A push head structure, include: push head, form on the push head have the wire slot, the wire slot radial through the push head form opposite radial opening, the wire slot axial extension to the one end end face of push head forms end face opening, guide strip, the guide strip is assembled on the push head, the guide strip is a plurality of, a plurality of the guide strip is arranged in the radial opening place parallel to the axis, and there is a gap between adjacent guide strips. The wire slot radial through the push head form opposite radial opening, the wire slot axial extension to the one end end face of push head forms end face opening, guide strip, the guide strip is assembled on the push head, the guide strip is a plurality of, a plurality of the guide strip is arranged in the radial opening place parallel to the axis, and there is a gap between adjacent guide strips. The wire coil is pushed into the stator core in the embedded wire mould in the prior art, and the technical problem that the coil is prone to staggered disorder is solved.

Description

Technical Field

[0001] This utility model relates to the field of stator winding technology, specifically to a pusher structure. Background Technology

[0002] A coil winding machine is a processing device used to embed coils into the stator core. A coil winding machine is generally also equipped with a paper feeding mechanism and a paper storage mechanism. The paper feeding mechanism generates slot cover paper, which is stored in the paper storage mechanism. The pushing structure within the winding die pushes the slot cover paper and the coil into the stator core.

[0003] For example, application number CN202422099968.6 discloses a winding die, including a pusher head and a pusher base. The pusher head is located on the front side of the pusher base, and the pusher head and pusher base are connected by at least one connecting post. The pusher head and pusher base can be driven to move together. The pusher head is used to push the coil for winding, and the pusher base is used to push the slot cover paper into the stator core. Further, the winding die also includes a plurality of circumferentially distributed fixed guide bars. The pusher head is located inside the fixed guide bars and cooperates with the fixed guide bars. A plurality of storage bars are also circumferentially distributed on the outer side of the fixed guide bars. Each storage bar has a storage groove formed on both sides. A storage space for accommodating the slot cover paper is formed between every two adjacent storage bars by the gap between the storage groove and the storage bar. The edge of the pusher base is formed with push teeth that can correspondingly push the slot cover paper.

[0004] The winding mold in the above document can push the slot cover paper and coil into the stator core, but during the process of pushing the coil into the stator core, the coil is prone to becoming misaligned. Utility Model Content

[0005] To address the technical problem in existing winding molds where coils tend to become misaligned and uneven when pushed into the stator core, this invention provides a pusher structure that solves the aforementioned technical problem.

[0006] To solve the above-mentioned technical problems, this utility model provides a pusher head structure, including:

[0007] A pusher head, wherein a wire groove is formed on the pusher head, the wire groove radially penetrates the pusher head to form a relative radial opening, and the wire groove axially extends to one end face of the pusher head to form an end face opening;

[0008] A guide bar is mounted on the pusher head. There are multiple guide bars, which are arranged parallel to the axis at the radial opening, with gaps between adjacent guide bars.

[0009] According to one embodiment of the present invention, the pusher head includes a main pusher head and a secondary pusher head. A U-shaped groove is formed on the main pusher head, and the secondary pusher head is embedded in the U-shaped groove. The outer surface of the secondary pusher head and the U-shaped groove cooperate to form the wire guide groove.

[0010] According to one embodiment of the present invention, the radial ends of the U-shaped groove of the main pusher are flared.

[0011] According to one embodiment of the present invention, the outer surfaces of the radial ends of the auxiliary push head are convex arc-shaped surfaces.

[0012] According to one embodiment of the present invention, a thread separator is also included, which is located on the axis of the pusher head.

[0013] According to one embodiment of the present invention, the dividing needle passes through the pusher head and connects to the first end of the first connecting rod, and the dividing needle and the first connecting rod cooperate to limit and assemble the main pusher head and the auxiliary pusher head.

[0014] According to one embodiment of the present invention, a positioner is also included, which positions the guide strip.

[0015] According to one embodiment of the present invention, the outer peripheral surface of the positioner has a positioning groove corresponding to the guide bar, and the guide bar passes through the positioning groove.

[0016] According to one embodiment of the present invention, a second connecting rod is connected to the second end of the first connecting rod, and the positioner is fitted at the connection between the first connecting rod and the second connecting rod.

[0017] According to one embodiment of the present invention, a groove is provided on the outer peripheral surface of the pusher, and the guide bar is installed in the groove.

[0018] Based on the above technical solution, the technical effects that this utility model can achieve are as follows:

[0019] The pusher structure of this utility model has a wire-passing groove formed on the pusher. The guide bar is assembled on the pusher, so the cable can enter the wire-passing groove through the gap between the guide bars. The wire-passing groove can protect the cable in conjunction with the gap between the guide bars, so that the cable is neatly arranged. When inserting the cable, the pusher and the guide bar move synchronously. The guide bar can play a guiding and limiting role, which can ensure that the cable remains neat when it enters the stator core and will not be tangled or messy.

[0020] The pusher structure of this utility model, by setting a main pusher and an auxiliary pusher, can be made of different materials. For example, the main pusher can be made of aluminum bronze and the auxiliary pusher can be made of nylon. When hanging the cable, the auxiliary pusher can avoid damaging the cable when it comes into contact with the cable. In addition, the outer surfaces of the radial ends of the auxiliary pusher are convex arc surfaces, which facilitates entry into the stator core and also makes it easier to pull the cable down when hanging the cable.

[0021] The pusher structure of this utility model has a guide bar installed in a groove on the outer circumference of the pusher, which facilitates the positioning and arrangement of the guide bar; a positioner is provided to further position the guide bar and prevent its position from changing; the pusher and the positioner are both limited and assembled, so the structure is simple and easy to disassemble and assemble. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the pusher structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the pusher structure;

[0024] Figure 3 for Figure 2 Enlarged view of part A;

[0025] Figure 4 for Figure 2 Enlarged view of part B;

[0026] Figure 5 This is a schematic diagram of the pusher head structure;

[0027] Figure 6 A schematic diagram of the main pusher head;

[0028] Figure 7 This is a schematic diagram of the secondary pusher head;

[0029] Figure 8 This is a schematic diagram of the positioner's structure;

[0030] In the diagram: 1-Push head; 11-Main push head; 111-U-shaped groove; 112-First groove; 12-Secondary push head; 121-Arc-shaped surface; 122-Second groove; 13-Wire guide groove; 2-Guide bar; 3-Wire separating pin; 4-First connecting rod; 5-Positioner; 51-Positioning groove; 52-Annular protrusion; 6-Second connecting rod; 7-Quick connector. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0035] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0036] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0037] like Figure 1-8 As shown, this embodiment provides a pusher structure, including a pusher 1 and guide bars 2. The pusher 1 has a wire-passing groove 13, which radially penetrates the pusher 1 to form opposing radial openings. The wire-passing groove 13 also extends axially to one end face of the pusher to form an end face opening. Multiple guide bars 2 are mounted on the pusher 1, arranged parallel to the axis at the radial openings of the pusher 1, with gaps between adjacent guide bars 2. Cables can be hung on the pusher structure through the gaps between the guide bars 2 and the wire-passing groove 13, and then embedded into the stator core via the pusher 1 and guide bars 2.

[0038] The push head 1 can be configured as a split structure, including a main push head 11 and a secondary push head 12. The main push head 11 is generally columnar, and a U-shaped groove 111 is formed on the main push head 11. The U-shaped groove 111 extends axially to one end face to form an opening. The secondary push head 12 is embedded in the U-shaped groove 111. The three surfaces of the secondary push head 12 are respectively attached to the inner bottom surface and the two side walls of the U-shaped groove 111. The outer surface of the secondary push head 12 and the two side walls of the U-shaped groove 111 cooperate to form a wire passage groove 13. The opening formed by the axial extension of the U-shaped groove 111 to the end face is the same opening as the end face opening of the wire passage groove 13.

[0039] As a preferred embodiment, the radial ends of the U-shaped groove 111 of the main push head 11 are flared to facilitate the cable passing through the cable guide groove 13. The opening of the U-shaped groove 111 extending to the end face of the main push head 11 is also flared to facilitate the cable passing through the cable guide groove 13.

[0040] As a preferred technical solution in this embodiment, the axial extension length of the U-shaped groove 111 is greater than half of the axial length of the main push head 11.

[0041] As a preferred technical solution in this embodiment, the main push head 11 can be made of aluminum bronze, and the auxiliary push head 12 can be made of nylon. When hanging the cable, the auxiliary push head 12 can avoid damaging the cable.

[0042] As a preferred technical solution in this embodiment, the outer surfaces of the radial ends of the auxiliary push head 12 are convex arc surfaces 121, which facilitates the pulling down of the cable when hanging the cable.

[0043] As a preferred embodiment, a groove is formed on the outer peripheral surface of the push head 1 to facilitate the assembly of the guide bar 2. Specifically, the outer peripheral surface of the main push head 11 has a plurality of first grooves 112, and the outer peripheral surface of the auxiliary push head 12 has a plurality of second grooves 122. The second grooves 122 and the first grooves 112 are correspondingly connected to form a groove on the push head 1 for mounting the guide bar 2. Preferably, the first grooves 112 are evenly and spaced apart on the outer peripheral surface of the main push head 11, and the extending directions of the first grooves 112 and the second grooves 122 are both parallel to the axis, so that the guide bar 2 can be at least partially embedded in the groove.

[0044] There are multiple guide bars 2, which extend in a straight line and are arranged in the grooves one by one. There are gaps between adjacent guide bars 2 to facilitate wire passage.

[0045] As a preferred technical solution in this embodiment, the guide strips 2 are only arranged at the two radial openings of the wire passage groove 13. The guide strips 2 are placed in the grooves one by one, and the fixing member fixes the guide strips 2 to the push head 1. The cable passes through the gap of the guide strips 2 and the wire passage groove 13.

[0046] As a preferred technical solution in this embodiment, the length of the guide bar 2 is greater than the axial length of the push head 1, and both ends of the guide bar 2 protrude from the axial ends of the push head 1.

[0047] The pusher structure of this embodiment also includes a thread separator 3, which is located on the axis of the pusher 1. One end of the thread separator 3 passes through the thread groove 13 and protrudes from the pusher 1 and the guide bar 2, while the other end of the thread separator 3 is connected to the first end of the first connecting rod 4.

[0048] As a preferred embodiment, the thread separator 3 and the first connecting rod 4 cooperate to limit and assemble the main push head 11 and the auxiliary push head 12 together. Both the main push head 11 and the auxiliary push head 12 have a central through hole at their center. The outer peripheral surface of the thread separator 3 has a first stepped surface, and the central through hole of the auxiliary push head 12 has a second stepped surface. The first and second stepped surfaces cooperate to limit the position of the auxiliary push head 12. The end of the thread separator 3 extends into the interior of the first connecting rod 4 and is threadedly connected to it. The end face of the first connecting rod 4 cooperates with the third stepped surface inside the central through hole of the main push head 11 to limit the position of the main push head 11, thereby axially limiting and assembling the main push head 11 and the auxiliary push head 12.

[0049] The pusher structure in this embodiment also includes a positioner 5, which is coaxially arranged with the pusher 1 and has an axial gap between it and the pusher 1. The positioner 5 can position the guide bar 2. The positioner 5 is disc-shaped and has multiple positioning grooves 51 distributed on its outer circumferential surface. The guide bar 2 can pass through the positioning grooves 51 accordingly.

[0050] As a preferred embodiment, the second end of the first connecting rod 4 is connected to the second connecting rod 6, and the connection between the first connecting rod 4 and the second connecting rod 6 is fitted with a positioning device 5. Specifically, the positioning device 5 has a central through hole at its center, and an annular protrusion 52 extends from the inner wall of the central through hole. The second end of the first connecting rod 4 has at least two stepped surfaces. The first stepped surface abuts against the end face of the second connecting rod 6, limiting the axial depth of the first connecting rod 4 extending into the second connecting rod 6. The second stepped surface cooperates with the end face of the second connecting rod 6 to clamp the annular protrusion 52 of the positioning device 5, thereby achieving the positioning device 5. The first connecting rod 4 and the second connecting rod 6 can be connected by threads.

[0051] The end of the second connecting rod 6 away from the first connecting rod 4 can also be connected to a quick connector 7. The specific structure of the quick connector 7 can be as disclosed in the quick connector structure in application number CN202422099968.6, which facilitates quick connection and disassembly with other structures through the quick connector 7.

[0052] When the pusher structure is used in a winding machine, multiple circumferentially arranged storage strips are distributed around the outer periphery of the guide bar 2. There are gaps between adjacent storage strips. The gaps between two adjacent storage strips and the opposing storage slots on the two storage strips together form a storage space, which is used to accommodate the slot cover paper. The pusher structure can also be equipped with a paper pushing component. When the pusher 1 and the guide bar 2 move to push the wire, the paper pushing component can be used to push the slot cover paper into the stator core.

[0053] The pusher structure of this embodiment is suitable for the assembly of deep water pump motors, specifically for the assembly of deep water pump motors with a motor stack thickness of 153-900mm.

[0054] The embodiments 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. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A push head structure, characterized by, include: A pusher (1) has a wire groove (13) formed on it. The wire groove (13) radially penetrates the pusher (1) to form a relative radial opening. The wire groove (13) axially extends to one end face of the pusher (1) to form an end face opening. Guide bar (2), the guide bar (2) is mounted on the pusher (1), there are multiple guide bars (2), the multiple guide bars (2) are arranged parallel to the axis at the radial opening, and there is a gap between adjacent guide bars (2).

2. A push head structure according to claim 1, wherein The pusher (1) includes a main pusher (11) and a secondary pusher (12). A U-shaped groove (111) is formed on the main pusher (11). The secondary pusher (12) is embedded in the U-shaped groove (111). The outer surface of the secondary pusher (12) and the U-shaped groove (111) cooperate to form the wire guide groove (13).

3. A push head structure according to claim 2, wherein The radial ends of the U-shaped groove (111) of the main pusher (11) are flared.

4. A push head structure according to claim 2, wherein The outer surfaces of the radial ends of the auxiliary pusher (12) are convex arc surfaces (121).

5. A push head structure according to claim 2, wherein It also includes a thread divider (3), which is located on the axis of the pusher (1).

6. A push head structure according to claim 5, wherein The dividing needle (3) passes through the pusher (1) and connects to the first end of the first connecting rod (4). The dividing needle (3) and the first connecting rod (4) cooperate to limit and assemble the main pusher (11) and the auxiliary pusher (12).

7. A pusher structure according to claim 6, characterized in that, It also includes a locator (5) for positioning the guide strip (2).

8. A pusher structure according to claim 7, characterized in that, The outer peripheral surface of the locator (5) has a positioning groove (51) corresponding to the guide bar (2), and the guide bar (2) passes through the positioning groove (51).

9. A push head structure according to claim 7, wherein The second end of the first connecting rod (4) is connected to the second connecting rod (6), and the positioner (5) is installed at the connection between the first connecting rod (4) and the second connecting rod (6).

10. A push head structure according to any one of claims 1-9, characterized in that The pusher (1) has a groove on its outer peripheral surface, and the guide bar (2) is installed in the groove.

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