Simplified limiting structure for magnetic steel sheet

Abstract

The utility model discloses a simplified limiting structure for magnetic steel sheets, which relates to the technical field of motors and comprises a positioning ring in embedded fit with a rotor cup, and a plurality of partition plates for separating the magnetic steel sheets are arranged on the positioning ring in a circumferential array manner. A limiting groove used for expanding the bearing area of the magnetic steel sheet is formed in the face, away from the cup bottom, of the positioning ring. According to the invention, the positioning ring is arranged, and the plurality of partition plates are arranged on the positioning ring in a circumferential array manner, so that the magnetic steel sheets can be limited, and circumferential deviation of the magnetic steel sheets can be prevented; and meanwhile, the limiting grooves are formed in the positioning rings, so that the contact area between the positioning rings and the magnetic steel sheets can be increased, the bearing effect on the magnetic steel sheets is improved, the probability of inclination of the magnetic steel sheets is further reduced, auxiliary installation can be achieved without a hand holding mode of installation personnel, and the installation efficiency is improved while manpower and time are saved.

Description

Technical Field

[0001] The present application relates to the technical field of electric motors, and in particular to a simplified limiting structure for magnetic steel sheets. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. It rotates in a magnetic field through an energized coil and drives the rotor to rotate, and can provide power for driving other devices. The magnetic field inside the motor is generated by magnetic steel sheets arranged around the rotor cup.

[0003] In the related art, a rotor cup of a motor includes a cup body, a receiving step is integrally formed in the cup body, the receiving step is annular, a magnetic steel sheet is installed in the cup body, the magnetic steel sheet is an arc-shaped sheet, and multiple magnetic steel sheets are arranged in sequence around the axis of the rotor cup; when installing the magnetic steel sheet, it is separated by the corrugated spring sheet and positioned by the step on the cup body.

[0004] However, since the rotor cup is manufactured using an integrated molding process, in order to reduce the difficulty of the process, the protruding thickness of the receiving step is relatively thin, and can only reach 1 / 2 of the thickness of the bottom of the magnetic steel sheet or even less. Therefore, the receiving step can only provide a part of the receiving area and cannot provide effective supporting force. During the actual installation process, the magnetic steel sheet is prone to tilt, and it is necessary to manually install the magnetic steel sheet by hand, which results in a long time-consuming and inconvenient installation. Utility Model Content

[0005] In order to simplify the rotor cup processing process and optimize the separation and positioning of the magnetic steel sheets, the present application provides a simplified limiting structure for the magnetic steel sheets.

[0006] The present application provides a simplified limiting structure for a magnetic steel sheet, which adopts the following technical solution:

[0007] A simplified limiting structure for a magnetic steel sheet, characterized in that it includes a positioning ring embedded in a rotor cup, a plurality of partition plates are arranged in a circular array on the positioning ring; and a limiting groove for expanding the bearing area of ​​the magnetic steel sheet is provided on a side of the positioning ring away from the bottom of the cup.

[0008] By adopting the above-mentioned technical solution, a positioning ring is set, and a plurality of partition plates arranged in a circular array on the positioning ring can be used to limit the magnetic steel sheet to prevent the magnetic steel sheet from circumferential displacement; at the same time, by providing a limiting groove on the positioning ring, the contact area between the positioning ring and the magnetic steel sheet can be increased to enhance the bearing effect on the magnetic steel sheet, thereby reducing the probability of the magnetic steel sheet tilting, thereby saving the time spent by the installers in the hand-supporting method, and realizing assisted installation, saving labor time and improving installation efficiency.

[0009] Preferably, the partition plate is detachably connected to the positioning ring.

[0010] By adopting the above technical solution and the detachable connection design, the number of partition plates can be adjusted according to the required number of magnetic steel sheets; the partition plates can be easily installed on the positioning rings and can also be easily removed; this design greatly improves the flexibility of the use of the partition plates and facilitates rapid adjustment according to actual needs.

[0011] Preferably, a plurality of support frames are provided on one side of the positioning ring close to the cup bottom.

[0012] By adopting the above technical solution, the setting of the support frame can increase the stability of the entire structure, and firmly fix the positioning ring at a position close to the bottom of the cup to prevent it from moving or tilting during use.

[0013] Preferably, any of the support frames is adjustably arranged along the axial direction of the rotor cup.

[0014] By adopting the above technical solution, the position of the bracket can be adjusted according to actual needs during assembly or use, so as to adapt to rotor cups of different models, thereby improving the adaptability of the technical solution.

[0015] Preferably, the positioning ring is composed of a plurality of arc-shaped plates, and adjacent arc-shaped plates are detachably connected.

[0016] By adopting the above technical solution, the detachable connection of the arc-shaped plate facilitates the assembly and disassembly of the positioning ring, further improving the convenience of the structure.

[0017] Preferably, the support frame comprises a support seat and an adjustment leg threadedly connected to the support seat, and the axis of rotation of the adjustment leg thread is parallel to the axis of the rotor cup.

[0018] By adopting the above technical solution and using threaded adjustment legs, the height of the support frame can be easily adjusted to accommodate rotor cups of different lengths.

[0019] Preferably, adjacent arc-shaped plates are plug-fitted through slots and plug-in blocks.

[0020] By adopting the above technical solution, the tight connection between the arc-shaped positioning plates is ensured through the plug-in cooperation of the slots and the plug-in blocks, thereby improving the overall structural stability of the positioning ring.

[0021] Preferably, scale lines are provided on the support seat.

[0022] By adopting the above technical solution, the adjustment height of the adjustment leg can be intuitively read using the set scale lines, which facilitates precise control of the position of the support frame.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Since the utility model adopts a positioning ring and a partition plate on the positioning ring, the positioning ring is embedded in the rotor cup, and the partition plates are arranged in a circular array, the bearing area of ​​the magnetic steel sheet is effectively increased, the stability and convenience of the installation of the magnetic steel sheet are improved, and the problem of tilting of the magnetic steel sheet is avoided, thereby reducing labor time and improving installation efficiency.

[0025] 2. By using multiple arc plates to form a positioning ring, the removal and installation of the positioning ring is convenient. At the same time, the height adjustment of the support frame can adapt to different types of rotor cups. At the same time, the size of the positioning ring can be adjusted as needed, which increases the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application;

[0027] Figure 2 It is a schematic diagram of the overall structure in Example 2 of the present application;

[0028] Figure 3 It is a schematic diagram of the overall structure in the third embodiment of the present application;

[0029] Figure 4 It is a schematic diagram of the partition plate in the third embodiment of the present application;

[0030] Figure 5 It is a schematic diagram of the curved plate in Example 3 of the present application.

[0031] Figure numerals: 1. positioning ring; 11. limiting groove; 12. arc plate; 121. slot; 122. plug-in block; 2. partition plate; 21. mounting groove; 3. support frame; 31. support seat; 32. adjustment leg; 4. scale line. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0033] The embodiment of the present application discloses a simplified limiting structure for a magnetic steel sheet.

[0034] Embodiment 1

[0035] Reference Figure 1A simplified limiting structure for a magnetic steel sheet, the structure mainly includes a positioning ring 1 which is embedded and matched with a rotor cup, a plurality of partition plates 2 are arranged in a circumferential array on the positioning ring 1, and the space between adjacent partition plates 2 is used to place the magnetic steel sheet, thereby realizing the positioning and separation of the magnetic steel sheet; a plurality of support frames 3 are also arranged in a circumferential array on one side of the positioning ring 1 close to the bottom of the cup, for supporting the positioning ring 1, and in the embodiment of the present application, ten support frames 3 and ten partition plates 2 are both arranged to realize the matching between the positioning ring 1 and the rotor cup.

[0036] The implementation principle of the embodiment of the present application is as follows: when installing the magnetic steel sheet, first embed the positioning ring 1 in the rotor cup to ensure a tight fit between the positioning ring 1 and the rotor cup; then, place the magnetic steel sheets in sequence between adjacent partition plates 2, and separate the magnetic steel sheets through the partition plates 2, thereby completing the installation of the magnetic steel sheets; since the corrugated spring sheet and rotor cup step positioning steps in the traditional method are omitted, the installation time is greatly reduced and the production efficiency is improved.

[0037] Embodiment 2

[0038] The difference between the second embodiment and the first embodiment is that:

[0039] A limiting groove 11 matching with the rotor cup is formed on a side of the positioning ring 1 facing away from the cup bottom, and the support frame 3 is adjustable along the axial direction of the rotor cup.

[0040] Reference Figure 2 The limiting groove 11 is located between adjacent partition plates 2. The limiting groove 11 is designed to expand the bearing area of ​​the magnetic steel sheet, provide stronger supporting force, and prevent the magnetic steel sheet from tilting and sliding inward during installation. The support frames 3 are all adjustable along the axial direction of the rotor cup. In the embodiment of the present application, there are ten support frames 3. Since the structure and connection method on any support frame 3 are the same, the structure and connection method on one of the support frames 3 are now described as an example.

[0041] Reference Figure 2 The support frame 3 includes a support seat 31 and an adjusting leg 32 threadedly connected to the support seat 31. The adjusting leg 32 abuts against the bottom of the rotor cup to play a supporting role. The axis of rotation of the adjusting leg 32 thread is parallel to the axis of the rotor cup. The adjusting leg 32 is rotated to adjust the height of the positioning ring 1.

[0042] The support base 31 is provided with scale lines 4 for conveniently observing the adjusted height of the support frame 31 .

[0043] The implementation principle of the embodiment of the present application is as follows: when installing the magnetic steel sheet, first place the positioning ring 1 into the rotor cup, install the positioning ring 1 to a suitable position by adjusting the support frame 3, separate the magnetic steel sheets through the partition plate 2, place the magnetic steel sheet into the limiting groove 11, increase the contact area between the positioning ring 1 and the magnetic steel sheet, and thus complete the installation of the magnetic steel sheet; since the corrugated spring sheet and rotor cup step positioning steps in the traditional method are omitted, the installation time is greatly reduced and the production efficiency is improved.

[0044] Embodiment 3

[0045] The difference between the third embodiment and the first and second embodiments is that:

[0046] Reference Figure 3 and Figure 5 No limiting groove 11 is provided on the positioning ring 1 and the positioning ring 1 is composed of a plurality of arc plates 12, and a detachable connection is adopted between adjacent arc plates 12; in the embodiment of the present application, five arc plates 12 are provided, a slot 121 is provided at one end of the arc plate 12, and an insert block 122 matching with the slot 121 of another arc plate 12 is provided at the other end, and the shapes of the slot 121 and the insert block 122 match with the curvature of the arc plate 12; the quick connection and disassembly of the arc plate 12 are realized by simple insertion and extraction actions.

[0047] Reference Figure 3 and Figure 5 The design of the arc plate 12 makes the positioning ring 1 more convenient to transport and store, and occupies less space; at the same time, at the installation site, it can be quickly assembled into a complete positioning ring 1 according to actual needs, which greatly improves the efficiency and flexibility of installation. In addition, if a certain arc plate 12 is damaged, only the part needs to be replaced, without replacing the entire positioning ring 1, which reduces maintenance costs.

[0048] Reference Figure 3 and Figure 4 The partition plate 2 is detachably connected to the positioning ring 1. In the embodiment of the present application, the number of partition plates 2 is ten. Since the structure and connection method on any partition plate 2 are the same, the structure and connection method on one of the partition plates 2 are now described as an example.

[0049] Reference Figure 3 and Figure 4A mounting groove 21 is provided on the partition plate 2 along the radial direction of the rotor cup, and the opening direction of the mounting groove 21 faces the axis of the rotor cup. An interference fit is formed between the mounting groove 21 and the positioning ring 1. The mounting groove 21 is installed in an array along the circumference of the outer ring of the positioning ring 1 during installation, and the positioning ring 1 is embedded in the mounting groove 21. A step that matches the partition plate 2 is also provided on a side of the positioning ring 1 close to the bottom of the cup, so that after the partition plate 2 is installed, the side close to the bottom of the cup and the side of the positioning ring 1 close to the bottom of the cup are located in the same horizontal plane. When the installed positioning ring 1 is placed in the rotor cup, the installed partition plate 2 forms an abutment fit with the inner wall of the rotor cup, which strengthens the stability of the partition plate 2 and enhances the structural strength of the positioning ring 1, making it more stable.

[0050] Reference Figure 3 and Figure 4 The partition plate 2 is detachably connected to the positioning ring 1 through the installation groove 21. When the partition plate 2 needs to be replaced or adjusted, the positioning ring 1 can be easily removed from the positioning ring 1 or installed in a new position by simply withdrawing the positioning ring 1 from the installation groove 21. This design is not only convenient for maintenance and replacement of the partition plate 2, but also allows the number and position of the partition plates 2 to be adjusted according to actual needs to meet the needs of rotor cups of different specifications and requirements.

[0051] The implementation principle of the embodiment of the present application is: when installing the magnetic steel sheet, first put the positioning ring 1 into the rotor cup, install the positioning ring 1 to the appropriate position by adjusting the support frame 3, determine the number of partition plates 2 to be installed according to the rotor cup model, and separate the magnetic steel sheets through the partition plates 2, thereby completing the installation of the magnetic steel sheets; it is adaptable to different models of rotor cups and omits the corrugated spring sheet and rotor cup step positioning steps in the traditional method, thereby greatly reducing the installation time and improving production efficiency.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A simplified limiting structure for a magnetic steel sheet, characterized in that: The invention comprises a positioning ring (1) which is embedded with the rotor cup, and a plurality of partition plates (2) for separating magnetic steel sheets are arranged in a circumferential array on the positioning ring (1); and a limiting groove (11) for expanding the bearing area of ​​the magnetic steel sheets is provided on a side of the positioning ring (1) which is away from the bottom of the rotor cup.

2. The simplified limiting structure for a magnetic steel sheet according to claim 1, characterized in that: The partition plate (2) is detachably connected to the positioning ring (1).

3. The simplified limiting structure for a magnetic steel sheet according to claim 1, characterized in that: A plurality of support frames (3) are also provided on one side of the positioning ring (1) close to the cup bottom.

4. The simplified limiting structure for magnetic steel sheets according to claim 3 is characterized in that: Any of the support frames (3) can be adjusted along the axial direction of the rotor cup.

5. The simplified limiting structure for magnetic steel sheets according to claim 1, characterized in that: The positioning ring (1) is composed of a plurality of arc-shaped plates (12), and adjacent arc-shaped plates (12) are detachably connected.

6. The simplified limiting structure for magnetic steel sheets according to claim 3, characterized in that: The support frame (3) comprises a support seat (31) and an adjustment leg (32) threadedly connected to the support seat (31), wherein the axis of threaded rotation of the adjustment leg (32) is parallel to the axis of the rotor cup.

7. The simplified limiting structure for magnetic steel sheets according to claim 5, characterized in that: Slots (121) and insert blocks (122) are provided between adjacent arc-shaped plates (12), and plug-in fitting is formed through the slots (121) and the insert blocks (122).

8. The simplified limiting structure for magnetic steel sheets according to claim 6, characterized in that: The support seat (31) is provided with scale lines (4).

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