Motor rotor core mounting device

Abstract

The utility model relates to a motor rotor core mounting device, which belongs to the technical field of motor manufacturing equipment and comprises a first fixing part and a second fixing part, the second fixing part is inserted into the upper end of the first fixing part, and a limiting device for limiting a central guide pillar is mounted in the first fixing part. Compared with the prior art, the utility model has the following advantages: the first fixing piece, the second fixing piece and the central guide pillar are assembled through the limiting device, the rotor iron core is subjected to aluminum casting processing, after the aluminum casting processing is completed, the rotating ring drives the central guide pillar to rotate in the through hole, and the guide sheet rotates to the side of the second baffle plate to realize unlocking; and the limiting plate enters the through hole, the center guide column is pulled out, the second fixing piece is taken out, and then other parts can be easily dismounted without a clamp spring or a bolt, so that the time cost and the labor cost for filing the dummy shaft are saved, and the production efficiency of the cast-aluminum rotor is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing equipment, in particular to a motor rotor core installation device. Background Art

[0002] The rotor is the rotating part of the motor. It is made of cast aluminum by neatly stacking the punching sheets and placing them in a mold. The current rotor includes a body, mounting holes and radial positioning grooves. The mold contains an axis core for neatly stacking the rotor punching sheets. In order to enable the rotor punching sheets to be neatly stacked, a strip-shaped protrusion is axially arranged on the axis core to cooperate with the positioning grooves of the rotor punching sheets. The rotor punching sheets are first stacked on the axis core and then placed in the corresponding outer mold for cast aluminum. In the production process of cast aluminum rotors, a mandrel mold is usually used instead of the true shaft to pass through the axial hole of the rotor punching sheet and align the rotor punching sheet. After the rotor is cast, the mandrel mold is removed, and the true shaft is assembled at the axial hole formed by the mandrel mold. The mandrel mold is commonly called a dummy shaft.

[0003] Existing patents such as application number CN202321827115.9 provide a motor rotor core mounting device, comprising a first fixing member and a second fixing member, the first fixing member and the second fixing member being nested on a center guide column to form a complete cylindrical shape, an annular indentation is provided at the top of the cylinder formed by the first fixing member and the second fixing member, a retaining spring is installed in the annular indentation, a clamping groove is provided on the top surface of the cylinder, a boss section of the chuck is fixed in the clamping groove, a first clamping groove is vertically provided at the center of the first fixing member, a second clamping groove is vertically provided at the center of the second fixing member, a first connecting key is provided on one side of the center guide column near the upper end, a second connecting key is provided on the other side opposite to the lower section of the center guide column, a base is provided at the bottom of the center guide column, and the center of the base fixes the center guide column.

[0004] Although this patent solves the problem of no longer needing to knock the dummy shaft to retract the shaft, and effectively avoids the problem of deformation of the dummy shaft body caused by knocking, the dummy shaft of this solution requires the removal of the retaining spring before the shaft can be retracted. The removal of the retaining spring requires tools, which is troublesome and affects efficiency. Utility Model Content

[0005] The utility model aims to solve the above technical problems and provides a motor rotor core installation device.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0007] A motor rotor core installation device includes a first fixing member and a second fixing member, wherein the second fixing member is inserted into the upper end of the first fixing member, a center guide column is installed in the first fixing member and the second fixing member and presents a complete cylindrical shape, and a limiting device for limiting the center guide column is installed in the first fixing member.

[0008] The first fixing member and the second fixing member are provided with a connecting hole for cooperating with the central guide column.

[0009] Preferably, the limiting device includes a connecting column arranged at the lower end of the center guide column and a limiting plate at the lower end of the connecting column, a cavity is opened in the first fixing member, a through hole is opened between the cavity and the connecting hole for cooperating with the connecting column and the limiting plate, a spring is installed at the bottom of the cavity, and a resist plate is installed on the spring to resist the limiting plate.

[0010] Preferably, a limiting groove for limiting the use of the limiting plate is provided in the first fixing member, and the limiting groove communicates with the cavity and the through hole.

[0011] Preferably, a limiting column is installed at the lower end of the second fixing member, and a limiting hole used to cooperate with the limiting column is provided on the inner side of the upper end of the first fixing member.

[0012] Preferably, a first baffle and a second baffle are provided on the second fixing member, and a guide plate is installed on the outer side of the upper end of the central guide column.

[0013] Preferably, a rotating ring is installed on the upper end of the central guide column.

[0014] After adopting the above structure, the utility model has the following advantages:

[0015] The utility model completes the assembly of the first fixing part, the second fixing part and the center guide column through the limit device, and performs cast aluminum processing on the rotor core. After completion, the rotating ring drives the center guide column to rotate in the through hole, and the guide piece is turned to the second baffle to realize unlocking. The limit plate can enter the through hole through the thrust of the spring, and the center guide column is pulled out to take out the second fixing part. The other parts can be easily removed later without the need for retaining springs or bolts, which saves the time cost and labor cost of filing the false shaft and effectively improves the production efficiency of the cast aluminum rotor.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is an exploded view of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the first fixing member of the utility model.

[0021] Figure 4 It is a first cross-sectional view of the first fixing member of the utility model.

[0022] Figure 5 It is a second cross-sectional view of the first fixing member of the utility model.

[0023] As shown in the figure: 1. first fixing member; 101. cavity; 2. second fixing member; 201. first baffle; 202. second baffle; 3. center guide column; 301. guide plate; 4. limiting device; 401. connecting column; 402. limiting plate; 403. through hole; 404. spring; 405. abutment plate; 5. connecting hole; 6. limiting column; 7. limiting hole; 8. rotating ring; 9. limiting groove. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] The utility model is further described in detail below in conjunction with the full text.

[0027] Combined with Figure 1-Figure 5A motor rotor core installation device includes a first fixing member 1 and a second fixing member 2, the second fixing member 2 is inserted into the upper end of the first fixing member 1, a center guide column 3 is installed in the first fixing member 1 and the second fixing member 2 and is in a complete cylindrical shape, and a limiting device 4 for limiting the center guide column 3 is installed in the first fixing member 1. By directly disassembling the three components of the center guide column 3, the first fixing member 1 and the second fixing member 2, the effect of quick disassembly can be achieved without fixing by bolts or clamps.

[0028] When the utility model is implemented, Figure 2 and Figure 3 As shown, a connecting hole 5 for cooperating with the center guide column 3 is provided on the first fixing member 1 and the second fixing member 2, and the center guide column 3 can be directly inserted into the connecting hole 5 to realize the connection between the first fixing member 1 and the second fixing member 2. At the same time, a limiting column 6 is installed at the lower end of the second fixing member 2, and a limiting hole 7 for cooperating with the limiting column 6 is provided on the inner side of the upper end of the first fixing member 1. The second fixing member 2 is inserted on the first fixing member 1, and the limiting column 6 is inserted into the limiting hole 7 to realize the connection and limitation of the first fixing member 1 and the second fixing member 2.

[0029] When the utility model is implemented, Figure 2-Figure 5 As shown, the limiting device 4 includes a connecting column 401 and a limiting plate 402 at the lower end of the connecting column 401, a cavity 101 is provided in the first fixing member 1, and a through hole 403 for matching the connecting column 401 and the limiting plate 402 is provided between the cavity 101 and the connecting hole 5. A spring 404 is installed at the bottom of the cavity 101, and a stop plate 405 is installed on the spring 404 to resist the limiting plate 402. When the limiting plate 402 moves in the connecting hole 5 into the through hole 403 located in the cavity 101, the central guide column 3 can be manually rotated to stagger the limiting plate 402 and the through hole 403. The limiting plate 402 is subjected to the elastic force of the spring 404, and the stop plate 405 resists the limiting plate 402. The stop plate 405 and the limiting plate 402 are in contact and fit.

[0030] The limiting plate 402 falls into the limiting groove 9 to achieve limiting, thereby completing the installation of the first fixing member 1, the second fixing member 2, and the center guide column 3.

[0031] like Figure 4 and Figure 5 As shown, a limiting groove 9 for limiting the use of the limiting plate 402 is provided in the first fixing member 1, and the limiting groove 9 connects the cavity 101 and the through hole 403. The limiting groove 9 and the through hole 403 are staggered at 90 degrees.

[0032] like Figure 1The second fixing member 2 is provided with a first baffle 201 and a second baffle 202, and a guide piece 301 is installed on the outer side of the upper end of the central guide column 3. According to the staggered 90-degree arrangement of the limiting groove 9 and the through hole 403, the positions of the first baffle 201 and the second baffle 202 are determined. The guide piece 301 is rotated to the side of the first baffle 201 to achieve locking, and the limiting plate 402 can be entered into the limiting groove 9 by the thrust of the spring 404; the guide piece 301 is rotated to the side of the second baffle 202 to achieve unlocking, and the limiting plate 402 can be entered into the through hole 403 by the thrust of the spring 404.

[0033] The guide piece 301 serves to position the direction of the limit plate 402, and when the installation of the first fixing member 1, the second fixing member 2, and the center guide column 3 is completed, the guide piece 301 serves to limit the second fixing member 2, preventing the second fixing member 2 from moving and causing the second fixing member 2 to fall.

[0034] The upper end of the central guide column 3 is provided with a rotating ring 8. The central guide column 3 can be driven to rotate in the through hole 5 by the rotating ring 8.

[0035] The working principle of this utility model:

[0036] The second fixing member 2 is inserted into the first fixing member 1, and the limiting column 6 is inserted into the limiting hole 7 to realize the connection and limiting of the first fixing member 1 and the second fixing member 2. The central guide column 3 is inserted into the through hole 5. When the limiting plate 402 moves in the connecting hole 5 into the through hole 403 located in the cavity 101, the central guide column 3 can be manually rotated to stagger the position of the limiting plate 402 and the through hole 403. The limiting plate 402 is subjected to the elastic force of the spring 404, and the support plate 405 is against the limiting plate 402. The limiting plate 402 falls into the limiting groove 9 to realize limiting, and the installation of the first fixing member 1, the second fixing member 2, and the central guide column 3 is completed. When in use, fix the rotor core on the outside of the cylinder. When in use, install the rotor core according to the above method, and then cast aluminum for the rotor core. After completion, the rotating ring 8 drives the center guide column 3 to rotate in the through hole 5, and the guide piece 301 is turned to the second baffle 202 to achieve unlocking. The thrust of the spring 404 can make the limit plate 402 enter the through hole 403, pull out the center guide column 3, and take out the second fixing part 2. Later, other parts can be easily removed.

[0037] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A motor rotor core installation device, characterized in that: The invention comprises a first fixing member (1) and a second fixing member (2), wherein the second fixing member (2) is inserted into the upper end of the first fixing member (1), a central guide column (3) is installed in the first fixing member (1) and the second fixing member (2) and is in a complete cylindrical shape, and a limiting device (4) for limiting the central guide column (3) is installed in the first fixing member (1).

2. The motor rotor core installation device according to claim 1, characterized in that: The first fixing member (1) and the second fixing member (2) are provided with a communicating hole (5) for use with the central guide column (3).

3. The motor rotor core installation device according to claim 2, characterized in that: The limiting device (4) comprises a connecting column (401) arranged at the lower end of the central guide column (3) and a limiting plate (402) at the lower end of the connecting column (401); a cavity (101) is provided in the first fixing member (1); a through hole (403) is provided between the cavity (101) and the connecting hole (5) for matching the connecting column (401) and the limiting plate (402); a spring (404) is installed at the bottom of the cavity (101); and a supporting plate (405) is installed on the spring (404) for supporting the limiting plate (402).

4. The motor rotor core installation device according to claim 3, characterized in that: A limiting groove (9) for limiting the limiting plate (402) is provided in the first fixing member (1), and the limiting groove (9) communicates with the cavity (101) and the through hole (403).

5. The motor rotor core installation device according to claim 1, characterized in that: A limiting column (6) is installed at the lower end of the second fixing member (2), and a limiting hole (7) for use with the limiting column (6) is provided on the inner side of the upper end of the first fixing member (1).

6. The motor rotor core installation device according to claim 1, characterized in that: The second fixing member (2) is provided with a first baffle (201) and a second baffle (202), and a guide plate (301) is installed on the outer side of the upper end of the central guide column (3).

7. The motor rotor core installation device according to claim 1, characterized in that: A rotating ring (8) is mounted on the upper end of the central guide column (3).

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