Self-heating device capable of realizing one-time flaring of insulation paper

Abstract

The utility model relates to the technical field of insulation paper processing, in particular to a self-heating device capable of realizing one-time flaring of insulation paper, which comprises a bottom plate and a hydraulic cylinder, the top of the bottom plate is fixedly connected with a placing frame, a rotor is arranged in the placing frame, insulation paper is arranged on the side surfaces of the inner walls of a plurality of grooves in the inner side of the rotor, and the hydraulic cylinder is arranged in the placing frame. A flaring assembly is arranged at the output end of the hydraulic cylinder; the flaring assembly comprises a push plate fixedly connected with the output end of the hydraulic cylinder, the bottom of the push plate is fixedly connected with a plurality of reaming rods matched with the grooves, the edges of the bottom ends of the reaming rods are arranged in a cambered surface mode, and heating rods are arranged at the bottom ends of the reaming rods. Through the cooperative arrangement of a hydraulic cylinder, a push plate, a heating rod and a reaming rod, insulation paper is heated through the heating rod, so that the insulation paper is softened, then the inner wall of the insulation paper is extruded through the reaming rod, the insulation paper is flared and shaped, the insulation paper is more matched with the inner wall of a groove in a rotor, and installation of a motor coil is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating paper processing, in particular to a device with self-heating function capable of realizing one-time expansion of insulating paper. Background Art

[0002] Rotor insulation paper, commonly referred to as rotor insulation paper, is a key insulating material in motor rotors. Its primary function is to ensure the proper operation of the motor by forming an insulating layer between the rotor and stator, preventing contact or discharge between conductive parts and thus preventing motor failure. Rotor insulation paper not only provides excellent electrical insulation properties but also possesses the necessary mechanical strength to withstand the various stresses experienced during motor operation.

[0003] With respect to the above-mentioned related technologies, the defect of the existing insulating paper expanding device is that after the insulating paper is squeezed and expanded, the insulating paper itself has a certain elasticity. When the insulating paper is installed on the inner wall of the rotor groove, the insulating paper does not fit well with the inner wall of the groove, which makes it inconvenient to install the motor coil. Therefore, the utility model provides a device with self-heating that can achieve one-time expansion of the insulating paper. Utility Model Content

[0004] The purpose of this application is to provide a device with self-heating that can achieve one-time expansion of insulating paper, so as to solve the problem proposed in the above background technology that after the insulating paper is extruded and expanded, the insulating paper itself has a certain elasticity. When the insulating paper is installed on the inner wall of the groove of the rotor, the insulating paper does not fit well with the inner wall of the groove, which makes it inconvenient to install the motor coil.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a self-heating device that can realize one-time expansion of insulating paper, comprising a base plate and a hydraulic cylinder, the top of the base plate is fixedly connected to a placement frame, a rotor is arranged in the placement frame, and the inner wall sides of multiple grooves on the inner side of the rotor are all provided with insulating paper, and the output end of the hydraulic cylinder is provided with a expansion assembly; the expansion assembly includes a push plate fixedly connected to the output end of the hydraulic cylinder, and the bottom of the push plate is fixedly connected to multiple expansion rods adapted to the grooves, the bottom end edge of the expansion rod is arranged in an arc surface, and the bottom end of the expansion rod is provided with a heating rod.

[0006] Preferably, the cross-sectional area of ​​the reaming rod is larger than the cross-sectional area of ​​the heating rod.

[0007] Preferably, a plurality of through holes adapted to the heating rods are provided on the inner side of the placement frame, and a plurality of slots adapted to the heating rods are provided on the inner side of the bottom plate.

[0008] Preferably, a pair of support rods are fixedly connected to the top of the base plate, threaded holes are provided on the inner sides of the support rods, and screws are threadedly connected to the side surfaces of the inner walls of the threaded holes.

[0009] Preferably, one end of the screw is fixedly connected to a rotating block, and one end of the screw away from the rotating block is fixedly connected to a limiting block.

[0010] Preferably, the top ends of a pair of support rods are fixedly connected to a same support plate, the hydraulic cylinder is fixedly connected to the support plate, and the output end of the hydraulic cylinder passes through the support plate.

[0011] Preferably, the surface of the limit block is spherical, and a layer of rubber pad is laid on the outside of the limit block.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the present invention, the hydraulic cylinder, the push plate, the heating rod and the reaming rod are arranged in coordination. The heating rod heats the insulating paper to soften the insulating paper. The reaming rod then squeezes the inner wall of the insulating paper to expand and shape the insulating paper. This makes the insulating paper more compatible with the inner wall of the groove in the rotor, facilitating the installation of the motor coil.

[0014] 2. In the present invention, the torsion block, the screw rod and the limit block are arranged in coordination, and the limit block is used to limit the position of the placed rotor, thereby preventing the rotor from being offset during the expansion of the insulating paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application 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 only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the axial structure of the utility model from a first perspective;

[0017] Figure 2 This is a schematic diagram of the axial structure from a second viewing angle of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the slot hole in the utility model;

[0019] Figure 4 This is a structural diagram of the bottom plate and through holes in the utility model.

[0020] In the figure: 1. Base plate; 2. Support rod; 3. Support plate; 4. Hydraulic cylinder; 5. Push plate; 6. Slot hole; 7. Reaming rod; 8. Heating rod; 9. Placement frame; 10. Rotor; 11. Rotating block; 12. Screw; 13. Limit block; 14. Threaded hole; 15. Insulation paper; 16. Through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Example 1: Reference Figure 1-4 The device shown is a self-heating device that can achieve one-time expansion of insulating paper, including a base plate 1 and a hydraulic cylinder 4. The top of the base plate 1 is fixedly connected to a placement frame 9, and a rotor 10 is arranged in the placement frame 9. The inner wall sides of multiple grooves inside the rotor 10 are all provided with insulating paper 15, and the output end of the hydraulic cylinder 4 is provided with a expansion component; the expansion component includes a push plate 5 fixedly connected to the output end of the hydraulic cylinder 4, and the bottom of the push plate 5 is fixedly connected to multiple expansion rods 7 that are adapted to the grooves. The bottom end of the expansion rod 7 is provided with a heating rod 8, which is convenient for expanding the insulating paper 15 after heating and softening it; the cross-sectional area of ​​the expansion rod 7 is larger than the cross-sectional area of ​​the heating rod 8, which is convenient for the heating rod 8 to soften the insulating paper 15 and then expand the insulating paper through the expansion rod 7; the inner side of the placement frame 9 is provided with multiple through holes 16 adapted to the heating rod 8, and the inner side of the base plate 1 is provided with multiple slots 6 adapted to the heating rod 8, which is convenient for the heating rod 8 to pass through.

[0024] In this embodiment, the hydraulic cylinder 4 is controlled to drive the push plate 5, multiple reaming rods 7, and the heating rod 8 to move downward, and the insulating paper 15 is heated by the heating rod 8 to soften the insulating paper 15. The hydraulic cylinder 4 is controlled to drive the push plate 5 to move downward, and the reaming rod 7 squeezes the inner wall of the insulating paper 15 to expand and shape the insulating paper 15. The arrangement of the slot 6 and the through hole 16 enables the heating rod 8 to pass through the slot 6 and the through hole 16 when the reaming rod 7 expands the insulating paper 15, and will not hinder the movement of the reaming rod 7.

[0025] Example 2: Reference Figure 1-4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a pair of support rods 2 are fixedly connected to the top of the base plate 1, and a threaded hole 14 is opened on the inner side of the support rod 2, and a screw 12 is threadedly connected to the side surface of the inner wall of the threaded hole 14; one end of the screw 12 is fixedly connected to the rotating block 11, and the end of the screw 12 away from the rotating block 11 is fixedly connected to the limiting block 13; the top ends of the pair of support rods 2 are fixedly connected to the same support plate 3, the hydraulic cylinder 4 is fixedly connected to the support plate 3, and the output end of the hydraulic cylinder 4 is passed through the support plate 3; the surface of the limit block 13 is spherical, and a layer of rubber pad is laid on the outside of the limit block 13 to prevent the limit block 13 from causing wear on the surface of the rotor 10.

[0026] In this embodiment, the rotor 10 with the insulating paper 15 is placed in the placement frame 9 , the rotating block 11 is twisted to drive the screw 12 to rotate, and the screw 12 drives the limiting block 13 to squeeze and limit the surface of the rotor 10 .

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device with self-heating function capable of achieving one-time expansion of insulating paper, comprising a base plate (1) and a hydraulic cylinder (4), characterized in that: A placement frame (9) is fixedly connected to the top of the base plate (1), a rotor (10) is arranged in the placement frame (9), and insulating paper (15) is arranged on the inner wall side of multiple grooves inside the rotor (10), and a flaring component is arranged at the output end of the hydraulic cylinder (4); The flaring assembly comprises a push plate (5) fixedly connected to the output end of the hydraulic cylinder (4); a plurality of flaring rods (7) adapted to the grooves are fixedly connected to the bottom of the push plate (5); and a heating rod (8) is provided at the bottom end of the flaring rod (7).

2. The device with self-heating function capable of achieving one-time expansion of insulating paper according to claim 1, characterized in that: The cross-sectional area of ​​the reaming rod (7) is greater than the cross-sectional area of ​​the heating rod (8).

3. The device with self-heating function capable of achieving one-time expansion of insulating paper according to claim 1, characterized in that: The inner side of the placement frame (9) is provided with a plurality of through holes (16) adapted to the heating rod (8), and the inner side of the bottom plate (1) is provided with a plurality of slots (6) adapted to the heating rod (8).

4. The device with self-heating function capable of achieving one-time expansion of insulating paper according to claim 3, characterized in that: A pair of support rods (2) are fixedly connected to the top of the base plate (1), threaded holes (14) are provided on the inner sides of the support rods (2), and screw rods (12) are threadedly connected to the side surfaces of the inner walls of the threaded holes (14).

5. The device with self-heating function capable of achieving one-time expansion of insulating paper according to claim 4, characterized in that: One end of the screw rod (12) is fixedly connected to the rotating block (11), and one end of the screw rod (12) away from the rotating block (11) is fixedly connected to the limiting block (13).

6. The device with self-heating function capable of achieving one-time expansion of insulating paper according to claim 4, characterized in that: The top ends of a pair of support rods (2) are fixedly connected to a same support plate (3), the hydraulic cylinder (4) is fixedly connected to the support plate (3), and the output end of the hydraulic cylinder (4) passes through the support plate (3).

7. The device with self-heating function capable of achieving one-time expansion of insulating paper according to claim 5, characterized in that: The surface of the limiting block (13) is spherical, and a layer of rubber pad is laid on the outer side of the limiting block (13).

Images