Motor rotor structure convenient to maintain

Abstract

The utility model relates to the technical field of motor rotor structures, and discloses a motor rotor structure convenient to maintain, which comprises a plurality of inner iron core sheets, the plurality of inner iron core sheets are arranged at intervals, the inner circular wall surfaces of the inner iron core sheets are movably sleeved with a rotating shaft, and the inner iron core sheets, the rotating shaft, a limiting ring and a second fixing hole are matched for use, so that the inner iron core sheets can be fixed on the rotating shaft. The effect that the outer iron core pieces and the inner iron core pieces are detached from the outside of the rotating shaft to be maintained can be achieved, a large number of the inner iron core pieces and the outer iron core pieces can be well restrained, the inner iron core pieces and the outer iron core pieces are stacked together one by one, the magnetic conductivity can be improved, magnetic hysteresis loss is reduced, and the service life of the rotating shaft is prolonged. According to the motor, the outer iron core piece and the inner iron core piece can be unlimited by pulling out the limiting insertion rod from the interior of the second fixing hole through the arranged limiting insertion rod, the inner iron core piece and the outer iron core piece can be conveniently detached, overhaul and maintenance are convenient, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor structures, in particular to a motor rotor structure which is easy to maintain. Background Art

[0002] The motor rotor is generally speaking the rotating part of the motor. The stator core, as the core component of the motor, is used to increase the magnetic flux of the inductor coil. It is also one of the most critical components of the motor. It is composed of pieces of iron sheets. This structure makes the motor have superior performance in magnetic properties, iron loss, hysteresis loss and manufacturing.

[0003] The existing rotor core for a motor that is easy to maintain (Announcement No.: CN218386988U) has at least the following disadvantages:

[0004] When the core laminations need to be removed for maintenance, the maintenance personnel need to turn the handle to disengage the threaded column from the threaded groove, then pull the cover plate upward to remove it, and then pull the core laminations upward to drive the mounting block to move upward, thereby disengaging the mounting block from the mounting groove. Through the above steps, the core laminations can be conveniently removed for maintenance. However, the motor core is generally composed of multiple pieces stacked together, and the mounting block and the threaded column are a whole. When the rotor composed of them is installed into the motor and runs at high speed, the magnetic conductivity will be reduced and the hysteresis loss will be increased, which will cause the core to generate a lot of heat, affecting the operation of the motor. There are certain limitations. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a motor rotor structure that is easy to maintain.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A motor rotor structure convenient for maintenance, comprising: a plurality of inner iron chips, the plurality of inner iron chips are arranged at intervals, a rotating shaft is movably sleeved on the inner circumferential wall surface of the inner iron chips, a plurality of first connection holes are formed in one side of the inner iron chips, an outer iron chip is movably sleeved in the first connection holes, two limiting rings are movably sleeved on the outer circumferential wall surface of the rotating shaft, two limiting tubes are movably sleeved on the outer circumferential wall surface of the rotating shaft, two first fixing holes are formed in the outer circumferential wall surface of the limiting tubes, a first limiting plate is movably sleeved in the first fixing holes, two first limiting grooves are formed in the outer circumferential wall surface of the rotating shaft, the first limiting grooves are movably sleeved with the first limiting plate, two second fixing holes are formed in one end of the limiting tubes, a second connection hole is formed in one side of the first limiting plate, a limiting insertion rod is movably sleeved on the inner circumferential wall surface of the second fixing holes, the limiting insertion rod is movably sleeved with the second connection hole, two first fixing grooves are formed in the inner circumferential wall surface of the second fixing holes, a fixing ring is fixedly sleeved on the inner circumferential wall surface of the first fixing grooves, a moving column is movably sleeved on the inner circumferential wall surface of the fixing ring, a spring is fixedly installed on the bottom surface of the moving column, two second limiting grooves are formed in the outer circumferential wall surface of the limiting insertion rod, and the second limiting grooves are movably sleeved with the moving column.

[0008] As a further solution of the present invention, a first limiting hole is formed in one side of the first limiting plate, two second limiting plates are fixedly installed on the outer circumferential wall surface of the rotating shaft, and the second limiting plates are movably sleeved with the first limiting hole.

[0009] As a further solution of the present invention, a connection groove is formed in one side of the limiting ring, a fixing column is movably sleeved in the connection groove, and the fixing column is fixedly installed with the limiting tube.

[0010] As a further solution of the present invention, two third limiting plates are fixedly installed on the outer circumferential wall surface of the rotating shaft, two second limiting holes are formed in one side of the inner iron chip, and the second limiting holes are movably sleeved with the third limiting plates.

[0011] As a further solution of the present invention, a second fixing groove is formed in the outer circumferential wall surface of the limiting insertion rod.

[0012] As a further solution of the present invention, a silica gel gasket is fixedly installed on one side of the rotating shaft.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting the inner iron chip, the rotating shaft, the first connection hole, the outer iron chip, the limiting ring, the limiting tube, the first fixing hole and the second fixing hole to cooperate with each other, the effect of disassembling the outer iron chip and the inner iron chip from the outside of the rotating shaft for maintenance can be achieved, so that a large number of inner iron chips and outer iron chips can be better constrained. The inner iron chips and the outer iron chips are stacked one by one, which is beneficial to improving the magnetic conductivity and reducing the hysteresis loss, so that the operation of the motor will not be affected during work. At the same time, by setting the limiting insertion rod, the outer iron chip and the inner iron chip can be released from the limit by pulling out the limiting insertion rod from the inside of the second fixing hole, which facilitates the disassembly of the inner iron chip and the outer iron chip, facilitates the overhaul and maintenance, and facilitates the use.

[0015] 2. By setting the silica gel gasket, the outer iron chip and the inner iron chip to cooperate with each other, the effect that the limiting ring can more fully squeeze and limit the inner iron chip and the outer iron chip can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the motor rotor structure for easy maintenance proposed by the present utility model;

[0017] Figure 2 is a schematic diagram of the inner iron chip structure of the motor rotor structure for easy maintenance proposed by the present utility model;

[0018] Figure 3 is Figure 2 a partial structural schematic diagram of A in

[0019] Figure 4 is Figure 2 a partial structural schematic diagram of B in

[0020] Figure 5 is a schematic diagram of the limiting insertion rod structure of the motor rotor structure for easy maintenance proposed by the present utility model.

[0021] In the figure: 1, inner iron chip; 2, rotating shaft; 3, first connection hole; 4, outer iron chip; 5, limiting ring; 6, limiting tube; 7, first fixing hole; 8, first limiting groove; 9, second fixing hole; 10, limiting insertion rod; 11, first fixing groove; 12, fixing ring; 13, moving column; 14, spring; 15, second limiting groove; 16, first limiting plate; 17, first limiting hole; 18, second connection hole; 19, second limiting plate; 20, connection groove; 21, fixing column; 22, second limiting hole; 23, third limiting plate; 24, second fixing groove; 25, silica gel gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Refer to Figures 1-5 , a motor rotor structure convenient for maintenance, including: a plurality of inner iron cores 1, the plurality of inner iron cores 1 are arranged at intervals, the inner circular wall surface of the inner iron core 1 is movably sleeved with a rotating shaft 2, a plurality of first connection holes 3 are opened on one side of the inner iron core 1, an outer iron core 4 is movably sleeved inside the first connection hole 3, two limiting rings 5 are movably sleeved on the outer circular wall surface of the rotating shaft 2, two limiting tubes 6 are movably sleeved on the outer circular wall surface of the rotating shaft 2, two first fixing holes 7 are opened on the outer circular wall surface of the limiting tube 6, a first limiting plate 16 is movably sleeved inside the first fixing hole 7, two first limiting grooves 8 are opened on the outer circular wall surface of the rotating shaft 2, and the first limiting groove 8 is movably sleeved with the first limiting plate 16. Two second fixing holes 9 are opened at one end of the limiting tube 6, a second connection hole 18 is opened on one side of the first limiting plate 16, a limiting insertion rod 10 is movably sleeved on the inner circular wall surface of the second fixing hole 9, the limiting insertion rod 10 is movably sleeved with the second connection hole 18, two first fixing grooves 11 are opened on the inner circular wall surface of the second fixing hole 9, a fixing ring 12 is fixedly sleeved on the inner circular wall surface of the first fixing groove 11, a moving column 13 is movably sleeved on the inner circular wall surface of the fixing ring 12, a spring 14 is fixedly installed on the bottom surface of the moving column 13, and two second limiting grooves 15 are opened on the outer circular wall surface of the limiting insertion rod 10, and the second limiting groove 15 is movably sleeved with the moving column 13.

[0026] With the inner iron chip 1 provided, when the user needs to disassemble and maintain the outer iron chip 4 and the inner iron chip 1, at this time, through the provided limit insertion rod 10, pulling the limit insertion rod 10 causes extrusion on the top surface of the moving column 13, so that the moving column 13 is extruded and pushed into the interior of the first fixing groove 11. Then, after completely pulling out the limit insertion rod 10 from the interior of 89 and the second connection hole 18, the first limit plate 16 is taken out from the interior of the first limit groove 8 and the first fixing hole 7. Thus, the limit tube 6 can be moved, slid off from the outside of the rotating shaft 2 and removed. Then, the limit ring 5 is removed from the outer circumferential wall surface of the rotating shaft 2. At this time, the user can slide the inner iron chip 1 from the outside of the rotating shaft 2, so that the rotating shaft 2 is drawn out from the interior of the inner iron chip 1. After that, the outer iron chip 4 is moved, so that the outer iron chip 4 is moved out from the interior of the first connection hole 3, thereby performing maintenance and repair on the damaged outer iron chip 4. After the maintenance is completed, the rotating shaft 2 is inserted into the interior of the inner iron chip 1, so that the third limit plate 23 is inserted into the interior of the second limit hole 22. The inner iron chip 1 is limited through the provided second limit hole 22 to prevent it from rotating on the outside of the rotating shaft 2. Then, the outer iron chip 4 is inserted into the interior of the first connection hole 3. Then, the limit ring 5 is sleeved on the outside of the rotating shaft 2 and is fitted with the inner iron chip 1 and the first connection hole 3. Then, the limit tube 6 is sleeved on the outside of the rotating shaft 2. At the same time, the fixing column 21 is inserted into the connection groove 20, so that the fixing column 21 limits the limit ring 5. Then, the first limit plate 16 is placed into the interior of the first fixing hole 7 and the first limit groove 8. At the same time, the second limit plate 19 is inserted into the interior of the first limit hole 17. The first limit plate 16 is limited through the provided second limit plate 19 to prevent the first limit plate 16 from rotating on the outside of the rotating shaft 2. Furthermore, the first limit plate 16 restricts the rotation of the limit tube 6 and the limit ring 5. Then, the limit insertion rod 10 is inserted into the interior of the second fixing hole 9 and the second connection hole 18, so that the moving column 13 enters the interior of the second limit groove 15 under the push of the spring 14. Thus, the limit insertion rod 10 is limited through the provided moving column 13 to prevent the limit insertion rod 10 from slipping out of the interior of the second fixing hole 9 by itself. At the same time, the limit insertion rod 10 prevents the first limit plate 16 from slipping out of the interior of the first fixing hole 7. Furthermore, the two limit rings 5 limit a plurality of inner iron chips 1 and outer iron chips 4 to prevent them from spreading out without restraint. Thus, the effect of disassembling and maintaining the outer iron chip 4 and the inner iron chip 1 from the outside of the rotating shaft 2 is achieved comprehensively, so that a large number of inner iron chips 1 and outer iron chips 4 can be better constrained. The inner iron chips 1 and the outer iron chips 4 are stacked one by one, which is beneficial to improving the magnetic conductivity and reducing the hysteresis loss, so that it will not affect the operation of the motor during work. At the same time, through the provided limit insertion rod 10, pulling out the limit insertion rod 10 from the interior of the second fixing hole 9 can release the limit on the outer iron chip 4, the inner iron chip 1, etc., which facilitates the disassembly of the inner iron chip 1 and the outer iron chip 4.It is convenient for maintenance and use.

[0027] In this embodiment, a first limiting hole 17 is formed on one side of the first limiting plate 16. Two second limiting plates 19 are fixedly installed on the outer circumferential wall surface of the rotating shaft 2. The second limiting plates 19 are movably sleeved with the first limiting hole 17. A connecting groove 20 is formed on one side of the limiting ring 5. A fixing column 21 is movably sleeved inside the connecting groove 20. The fixing column 21 is fixedly installed with the limiting tube 6. Two third limiting plates 23 are fixedly installed on the outer circumferential wall surface of the rotating shaft 2. Two second limiting holes 22 are formed on one side of the inner iron chip 1. The second limiting holes 22 are movably sleeved with the third limiting plates 23. A second fixing groove 24 is formed on the outer circumferential wall surface of the limiting insertion rod 10. A silica gel gasket 25 is fixedly installed on one side of the rotating shaft 2.

[0028] Through the arranged silica gel gasket 25, the silica gel gasket 25 can fill the gaps between the limiting ring 5, the outer iron chip 4 and the inner iron chip 1, so that the extrusion and limitation of the limiting ring 5 on the inner iron chip 1 and the outer iron chip 4 are more sufficient.

[0029] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: By providing the inner iron chip 1, when the user needs to disassemble and maintain the outer iron chip 4 and the inner iron chip 1, at this time, by means of the provided limit insertion rod 10, pulling the limit insertion rod 10 causes extrusion on the top surface of the moving column 13, so that the moving column 13 is extruded and pushed into the interior of the first fixing groove 11. Then, after completely pulling out the limit insertion rod 10 from the inside of 89 and the second connection hole 18, the first limiting plate 16 is taken out from the inside of the first limiting groove 8 and the first fixing hole 7, and thus the limit tube 6 can be moved, slid off from the outside of the rotating shaft 2 and removed. Then, the limit ring 5 is removed from the outer circumferential wall surface of the rotating shaft 2. At this time, the user can slide the inner iron chip 1 from the outside of the rotating shaft 2, so that the rotating shaft 2 is pulled out from the inside of the inner iron chip 1. Then, the outer iron chip 4 is moved so that the outer iron chip 4 is moved out from the inside of the first connection hole 3, thereby performing maintenance and repair on the damaged outer iron chip 4. After the maintenance is completed, the rotating shaft 2 is inserted into the inner iron chip 1, so that the third limiting plate 23 is inserted into the second limiting hole 22, and the inner iron chip 1 is limited by the provided second limiting hole 22 to prevent it from rotating on the outside of the rotating shaft 2. Then, the outer iron chip 4 is inserted into the first connection hole 3, and then the limit ring 5 is sleeved on the outside of the rotating shaft 2 and abuts against the inner iron chip 1 and the first connection hole 3. Then, the limit tube 6 is sleeved on the outside of the rotating shaft 2. At the same time, the fixing column 21 is inserted into the connection groove 20, so that the fixing column 21 limits the limit ring 5. Then, the first limiting plate 16 is placed into the first fixing hole 7 and the first limiting groove 8, and at the same time, the second limiting plate 19 is inserted into the first limiting hole 17. The first limiting plate 16 is limited by the provided second limiting plate 19 to prevent the first limiting plate 16 from rotating on the outside of the rotating shaft 2. Furthermore, the first limiting plate 16 restricts the rotation of the limit tube 6 and the limit ring 5. Then, the limit insertion rod 10 is inserted into the second fixing hole 9 and the second connection hole 18, so that the moving column 13 enters the interior of the second limiting groove 15 under the push of the spring 14. Thus, the limit insertion rod 10 is limited by the provided moving column 13 to prevent the limit insertion rod 10 from slipping out of the second fixing hole 9 by itself. At the same time, the limit insertion rod 10 prevents the first limiting plate 16 from slipping out of the first fixing hole 7. Furthermore, the two limit rings 5 limit a plurality of inner iron chips 1 and outer iron chips 4 to prevent them from spreading out unrestrainedly. Thus, the effect of disassembling and maintaining the outer iron chip 4 and the inner iron chip 1 from the outside of the rotating shaft 2 is achieved comprehensively, so that a large number of inner iron chips 1 and outer iron chips 4 can be well constrained. The inner iron chips 1 and the outer iron chips 4 are stacked one by one, which is beneficial to improving the magnetic conductivity and reducing the hysteresis loss, so that the operation of the motor will not be affected during work. At the same time, by means of the provided limit insertion rod 10,Pulling out the limit plug 10 from the inside of the second fixing hole 9 can release the limit on the outer iron chip 4 and the inner iron chip 1, etc., facilitating the disassembly of the inner iron chip 1 and the outer iron chip 4, facilitating maintenance and facilitating use.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A motor rotor structure facilitating maintenance, comprising a plurality of inner iron chips (1), the plurality of inner iron chips (1) being arranged at intervals, and a rotating shaft (2) being movably sleeved on the inner circumferential wall surface of the inner iron chip (1), characterized in that, On one side of the inner iron chip (1), a number of first connection holes (3) are provided. The outer iron chip (4) is movably sleeved inside the first connection holes (3). Two limiting rings (5) are movably sleeved on the outer circumferential wall surface of the rotating shaft (2). Two limiting tubes (6) are movably sleeved on the outer circumferential wall surface of the rotating shaft (2). Two first fixing holes (7) are provided on the outer circumferential wall surface of the limiting tube (6). A first limiting plate (16) is movably sleeved inside the first fixing holes (7). Two first limiting grooves (8) are provided on the outer circumferential wall surface of the rotating shaft (2). The first limiting grooves (8) are movably sleeved with the first limiting plate (16). Two second fixing holes (9) are provided at one end of the limiting tube (6). A second connection hole (18) is provided on one side of the first limiting plate (16). A limiting insertion rod (10) is movably sleeved on the inner circumferential wall surface of the second fixing holes (9). The limiting insertion rod (10) is movably sleeved with the second connection hole (18). Two first fixing grooves (11) are provided on the inner circumferential wall surface of the second fixing holes (9). A fixing ring (12) is fixedly sleeved on the inner circumferential wall surface of the first fixing grooves (11). A moving column (13) is movably sleeved on the inner circumferential wall surface of the fixing ring (12). A spring (14) is fixedly installed on the bottom surface of the moving column (13). Two second limiting grooves (15) are provided on the outer circumferential wall surface of the limiting insertion rod (10). The second limiting grooves (15) are movably sleeved with the moving column (13).

2. The motor rotor structure convenient for maintenance according to claim 1, wherein, A first limiting hole (17) is provided on one side of the first limiting plate (16). Two second limiting plates (19) are fixedly installed on the outer circumferential wall surface of the rotating shaft (2). The second limiting plates (19) are movably sleeved with the first limiting hole (17).

3. The motor rotor structure convenient for maintenance according to claim 1, characterized in that, A connection groove (20) is provided on one side of the limiting ring (5). A fixing column (21) is movably sleeved inside the connection groove (20). The fixing column (21) is fixedly installed with the limiting tube (6).

4. The motor rotor structure facilitating maintenance according to claim 1, wherein Two third limiting plates (23) are fixedly installed on the outer circumferential wall surface of the rotating shaft (2). Two second limiting holes (22) are provided on one side of the inner iron chip (1). The second limiting holes (22) are movably sleeved with the third limiting plates (23).

5. The motor rotor structure facilitating maintenance according to claim 1, wherein A second fixing groove (24) is provided on the outer circumferential wall surface of the limiting insertion rod (10).

6. The motor rotor structure facilitating maintenance according to claim 1, characterized in that, A silica gel gasket (25) is fixedly installed on one side of the rotating shaft (2).

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