Fan-shaped punching sheet iron core structure

Abstract

The utility model discloses a fan-shaped punching sheet iron core structure which is provided with a base, an annular groove is arranged on the base, a cylinder is arranged on the annular groove of the base, a gear shaft is arranged on the base, a rotating motor is arranged on one side of the base, a gear is arranged on an output shaft of the rotating motor and meshed with the gear shaft, and a positioning hole is arranged in the annular groove. After four positioning screws penetrate through the through holes of the fan-shaped punching sheet, the positioning holes in the annular groove and the baffle table, nuts are connected to the positioning screws in a threaded mode, and the upper end of the fan-shaped punching sheet is connected with the baffle ring in a covering mode; the fan-shaped punching sheet storage tool has the advantages that the installation time is saved, the installation is convenient and fast, and the fan-shaped punching sheet storage tool can be used as a tool for storing the fan-shaped punching sheet and can also be used as a final product to be assembled with a motor base.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, specifically the technical field of electric motors, and more specifically to a fan-shaped punching sheet iron core structure. Background Art

[0002] As one of the core components of the electric motor, the iron core is mainly used to transfer magnetic flux and improve the efficiency of the motor, and plays a vital role. Due to processing technology issues, punching sheets with a diameter of more than 1m can only be assembled in a circle using multiple fan-shaped punching sheets, and the multiple layers are repeatedly staggered and stacked to form an iron core. Its integrity and strength cannot be compared with the whole circle punching sheet stacking. Since the individual area of ​​the fan-shaped punching sheet is large, it is time-consuming and labor-intensive to assemble. Therefore, a new structure is needed to strengthen the overall fixation of the fan-shaped punching sheet iron core. At the same time, when the magnetic flux of the core yoke is low, if silicon steel sheets are continued to be used as the iron core part, the material utilization rate will be low and waste will be generated. Especially in high-voltage motors, the above phenomenon is particularly obvious due to the electrical clearance design requirements. Therefore, a new structure is urgently needed to solve the dilemma. Utility Model Content

[0003] In order to solve the above problems, the utility model discloses a fan-shaped punching core structure.

[0004] The specific technical solutions are as follows:

[0005] A fan-shaped punching iron core structure is provided with a base, the base is annular, an annular groove is provided on the base, a cylinder is provided, a baffle is provided at the bottom of the cylinder, one end of the cylinder with the baffle is placed on the annular groove of the base, the outer cylindrical part of the base is a gear shaft, a rotating motor is provided on one side of the base, a gear is provided on the output shaft of the rotating motor to mesh with the gear shaft, a positioning hole is provided inside the annular groove, when the fan-shaped punching is stacked inside the cylinder, the through holes on the fan-shaped punching are arranged corresponding to the positioning holes on the annular groove, after four positioning screws pass through the through holes of the fan-shaped punching, the positioning holes on the annular groove and the baffle, the nuts are screwed on the positioning screws to lock the cylinder body and the base together; when the fan-shaped punching is installed inside the cylinder, the upper end of the fan-shaped punching is covered with a baffle ring, and the circular hole on the baffle ring is also arranged corresponding to the through hole of the fan-shaped punching; the screw passes through the circular hole of the baffle ring and the remaining through holes of the fan-shaped punching, and the two ends of the screw are locked and fixed by nuts.

[0006] The thickness of the annular groove is smaller than the thickness of the stop platform.

[0007] The upper end of the positioning screw is locked and fixed by a nut.

[0008] The utility model has the advantages that when assembling the sector-shaped punching sheets, in combination with the rotating motor, the workers only need to place the sector-shaped punching sheets in the same position in sequence to continuously stack them, and the positioning screw serves as a positioning device during the assembly process to ensure the smooth rotation of the cylinder, and the base can be removed after the assembly is completed, and when the positioning screw is adjusted to make the upper screw positions of the positioning screw and other sector-shaped punching sheet through holes consistent, the positioning screw can become a final product part and exist in the motor, and when the rotating motor drives the screw to rotate, stress is continuously applied to the positioning screw, so that the positioning screw transmits force to the sector-shaped punching sheet, applies load to the sector-shaped punching sheet, and the workers can put in the sector-shaped punching sheet more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 This is a structural diagram of the fan-shaped punch installed inside the cylinder;

[0011] Figure 3 It is a schematic diagram of the fan-shaped punching structure;

[0012] Figure 4 This is the overall assembly diagram after removing the base;

[0013] Figure 5 It is a schematic diagram of the three-dimensional structure of the cylinder;

[0014] Figure 6 It is a schematic diagram of the screw and positioning screw structure. DETAILED DESCRIPTION

[0015] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0016] A fan-shaped punching core structure is provided with a base 1, the base 1 is annular, an annular groove 1a is provided on the base 1, a cylinder 2 is provided, a stopper 2a is provided at the bottom of the cylinder 2, one end of the cylinder with the stopper 2a is placed on the annular groove 1a of the base, an outer cylindrical portion 1b of the base is a gear shaft, a rotating motor 7 is provided on one side of the base 1, a gear is provided on the output shaft of the rotating motor 3 to mesh with the gear shaft, a positioning hole is provided inside the annular groove 1a, and when the fan-shaped punching 3 is stacked inside the cylinder 2, the fan-shaped punching 3 is The through hole 3a is arranged corresponding to the positioning hole 1c on the annular groove. After the four positioning screws 4 pass through the through hole 3a of the sector-shaped punch, the positioning hole 1c on the annular groove and the baffle 2a, the nuts are screwed on the positioning screws 4 to lock the cylinder 2 and the base 1 together; when the sector-shaped punch 3 is installed inside the cylinder 2, the upper end of the sector-shaped punch 3 is covered with a baffle ring 5, and the circular hole on the baffle ring 5 is also arranged corresponding to the through hole 3a of the sector-shaped punch; the screw 6 passes through the circular hole of the baffle ring 5 and the remaining through holes of the sector-shaped punch, and the two ends of the screw 6 are locked and fixed by nuts.

[0017] In order to prevent the fan-shaped punch from abutting against the convex edge of the annular groove, the thickness of the annular groove 1a is smaller than the thickness of the stop 2a.

[0018] The upper end of the positioning screw 4 is locked and fixed by a nut.

[0019] The working principle of the utility model is: when it is necessary to stack the sector-shaped punching sheets, the cylinder and the base can be assembled first, and then the gear shaft on the base is meshed with the rotating motor, and first four positioning screws are inserted, and the nuts are tightened on the round table surface of the base. The positioning screws also play the role of groove sample rods at the same time, and have a guiding function for the installation of the sector-shaped punching sheets. The sector-shaped punching sheets are inserted in sequence. After stacking, the retaining ring is covered, the screws are inserted into the through holes of the remaining sector-shaped punching sheets, and the nuts are tightened at one end of the retaining ring, and then the nuts on the base are removed to separate the base from the cylinder. At this time, the cylinder with the sector-shaped punching sheets can be taken away (i.e., the iron core) by hoisting, and then the other end of the screw is tightened and fixed by the nut, and finally the positions of the four positioning screws are adjusted so that the four The position of the first and second positioning screws should be kept flush with the position of the screw, and the nuts at both ends of the four positioning screws should be tightened to complete the entire assembly process. When the present application is used as a tool for storing sector-shaped punching sheets, the cylinder and the base should be assembled first, and then the gear shaft on the base should be meshed with the rotating motor. First, four positioning screws should be inserted, and the nuts should be tightened on the round table surface of the base. The positioning screws also act as groove rods, which have a guiding function for the installation of the sector-shaped punching sheets. The sector-shaped punching sheets are inserted in sequence. After stacking, the retaining rings are covered, and the screws are inserted into the through holes of the remaining sector-shaped punching sheets. At this time, the nuts are tightened to fix the screws and the positioning screws at both ends to maintain a certain pressure on the sector-shaped punching sheets. The bottom of the gear shaft is flat, and the cylinder with a base can be stored vertically on the bottom surface.

Claims

1. A fan-shaped punching core structure, characterized in that: A base is provided, which is annular and has an annular groove. A cylinder is provided, and a baffle is provided at the bottom of the cylinder. One end of the cylinder with the baffle is placed on the annular groove of the base. The outer cylindrical part of the base is a gear shaft. A rotating motor is provided on one side of the base. A gear is provided on the output shaft of the rotating motor to mesh with the gear shaft. A positioning hole is provided inside the annular groove. When the fan-shaped punching pieces are stacked inside the cylinder, the through holes on the fan-shaped punching pieces are arranged corresponding to the positioning holes on the annular groove. After four positioning screws pass through the through holes of the fan-shaped punching pieces, the positioning holes on the annular groove and the baffle, nuts are screwed on the positioning screws to lock the cylinder body and the base together; when the fan-shaped punching pieces are installed inside the cylinder, the upper end of the fan-shaped punching pieces is covered with a baffle ring, and the circular holes on the baffle ring are also arranged corresponding to the through holes of the fan-shaped punching pieces; the screw passes through the circular hole of the baffle ring and the remaining through holes of the fan-shaped punching pieces, and the two ends of the screw are fixed by nuts.

2. The fan-shaped punching core structure according to claim 1 is characterized in that: The thickness of the annular groove is smaller than the thickness of the stop platform.

3. The fan-shaped punching core structure according to claim 1 is characterized in that: The upper end of the positioning screw is locked and fixed by a nut.

Images