Motor stator convenient to disassemble

Abstract

The utility model relates to the technical field of motors, and discloses a motor stator convenient to disassemble, which comprises a motor shell, a motor front end and a motor rear end cover, and the motor front end is fixedly connected to one end of the motor shell. According to the utility model, in the maintenance process, the stator core needs to be detached from the interior of the motor shell, the stator core is fixed by taking out the locking threaded column from the interior of the locking threaded hole, and the stator core and the motor shell are assembled in an over-tight fit manner, so that the stator core is not easy to be detached from the interior of the motor shell. When the motor is used, the rear end cover of the motor is detached from the shell of the motor, the central position of the pushing block is impacted by a tool, the pushing block is moved in an impacted manner, and the stator core is extruded by the pushing block to move, so that the stator core is quickly taken out from the interior of the shell of the motor, the motor is convenient to detach, and a motor body is not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to a motor stator which is easy to disassemble. Background Art

[0002] As a general-purpose power machine, the motor is widely used in various fields. The motor is equipped with a stator inside which a coil can be installed. The stator is the stationary part of the motor.

[0003] After the winding coil of the motor is burned, the motor stator must be removed first, and then the waste coil can be removed and then offline maintenance can be carried out. In the prior art, the removal method is to heat the motor housing and use inertia to drop the stator out or knock the housing to shake the stator out. This method is very likely to cause damage to the housing. For this reason, we propose an electric motor stator that is easy to disassemble. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a motor stator which is easy to disassemble.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a motor stator that is easy to disassemble, including a motor housing, a motor front end and a motor rear end cover, the motor front end is fixedly connected to one end of the motor housing, the motor rear end cover is detachably and movably arranged at the end of the motor housing away from the motor front end, a movable stator core is arranged inside the motor housing, a fixed stator winding frame is arranged inside the stator core, a mounting ring is fixedly connected to the side of the stator core corresponding to the inner side of the motor housing, a movable pushing structure is arranged between the mounting ring and the stator core, two movable cavities are arranged inside the mounting ring, a movable calibration structure is arranged inside the movable cavity, a wiring port is arranged on the side of the motor housing, and a ventilation port is arranged on the end face of the motor rear end cover.

[0006] Preferably, the pushing structure comprises a pushing block, which is a rectangular block and has two rectangular openings symmetrically provided on its side. The pushing block is movably mounted inside the motor housing and is arranged between the stator core and the mounting ring.

[0007] Preferably, two sliding grooves are symmetrically provided on the two corresponding wall surfaces inside the motor housing at the positions corresponding to the pushing blocks. The sliding grooves are rectangular grooves, and sliding blocks are movably installed inside the sliding grooves. The sliding blocks are rectangular blocks, and the sides of the sliding blocks are fixedly connected to the sides of the pushing blocks.

[0008] Preferably, the calibration structure includes a movable column movably installed inside the movable cavity, one end of the movable column is fixedly connected to a reset spring, the end of the reset spring away from the movable column is fixedly connected to the inside of the movable cavity, a movable hole is opened on the end surface of the mounting ring corresponding to the position of the movable cavity, the movable hole is a circular hole, one end of the movable column is fixedly connected to a sliding column corresponding to the position of the movable hole, the sliding column passes through the movable hole, and a limiting block is fixedly connected to the side of the motor housing corresponding to the position of the sliding column.

[0009] Preferably, positioning cavities are equidistantly provided on the outer side of the stator core, the positioning cavities are rectangular cavities, and the end surface of the mounting ring is fixedly connected with a positioning block corresponding to the position of the positioning cavity. The positioning block is slidably connected to the inside of the positioning cavity, and the positioning block is a rectangular block.

[0010] Preferably, locking threaded holes are equidistantly formed at one end of the stator core corresponding to the front end of the motor, the locking threaded holes penetrate the stator core and extend to the inside of the mounting ring, and the internal threads of the locking threaded holes are connected to locking threaded columns.

[0011] Preferably, the stator winding frame is fixedly connected to the inner side of the stator core by welding, there are at least two stator winding frames, and the stator core is installed inside the motor housing by tight fit.

[0012] Beneficial Effects

[0013] The utility model provides a motor stator that is easy to disassemble and has the following beneficial effects:

[0014] (1) The motor stator is easy to disassemble. During the maintenance process, the stator core needs to be disassembled from the inside of the motor housing. The stator core is fixed by taking out the locking threaded column from the inside of the locking threaded hole. Since the stator core and the motor housing are assembled in an over-tight fit, the rear end cover of the motor is first disassembled from the motor housing, and the center position of the pushing block is hit with a tool. The pushing block is moved by the impact, and the pushing block squeezes the stator core to move, so that the stator core is quickly taken out from the inside of the motor housing. The disassembly is convenient and will not cause damage to the motor body.

[0015] (2) The motor stator is easy to disassemble. The stator core is inserted into the motor housing by knocking and squeezing. After the stator core is assembled, it drives the sliding column to be squeezed between the limit blocks. The gap between the two sliding columns and the limit blocks can be observed to determine whether the stator core is installed correctly. When the gap between the sliding column and the limit block is too large, it means that the stator core is installed crookedly. At this time, it only needs to knock the corresponding position of one end of the stator core to make the sliding column contact the limit block, indicating that it is installed in the appropriate position, which is convenient for the operator to observe the installation result. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the stator core of the utility model;

[0020] Figure 3 It is a side sectional view of the stator core of the utility model;

[0021] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0022] Figure 5 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0023] Legend:

[0024] 1. Motor housing; 2. Motor front end; 3. Motor rear end cover; 4. Stator core; 5. Stator winding frame; 6. Mounting ring; 71. Sliding groove; 72. Sliding block; 73. Pushing block; 81. Movable cavity; 82. Movable hole; 83. Movable column; 84. Sliding column; 85. Reset spring; 86. Limit block; 9. Locking threaded hole; 10. Locking threaded column; 11. Positioning cavity; 12. Positioning block; 13. Ventilation port; 14. Wiring port. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-Figure 5As shown, a motor stator that is easy to disassemble comprises a motor housing 1, a motor front end 2 and a motor rear end cover 3. The motor front end 2 is fixedly connected to one end of the motor housing 1, and the motor rear end cover 3 is detachably arranged at the end of the motor housing 1 away from the motor front end 2. A wiring port 14 is provided on the side of the motor housing 1, and a vent 13 is provided on the end surface of the motor rear end cover 3. The vent 13 is used for heat dissipation. A movable stator core 4 is provided inside the motor housing 1. The stator core 4 is installed inside the motor housing 1 in a tight fit. Positioning cavities 11 are equidistantly provided on the outside of the stator core 4. The positioning cavity 11 is a rectangular cavity. The end surface of the mounting ring 6 is fixedly connected with a positioning block 12 corresponding to the position of the positioning cavity 11. The positioning block 12 is slidably connected to the inside of the positioning cavity 11. The positioning block 12 is a rectangular block. When installing the stator core 4, the positioning cavity 11 is aligned with the position of the positioning block 12. The stator core 4 is inserted into the inside of the motor housing 1 by knocking and squeezing, which is convenient for positioning and installing the stator core 4. A fixed stator winding frame 5 is arranged inside the stator core 4. The stator winding frame 5 is fixedly connected to the inner side of the stator core 4 by welding. There are at least two stator winding frames 5. The copper wire inside the motor is wound by the winding frame 5. The inner side of the motor housing 1 The side of the corresponding stator core 4 is fixedly connected with a mounting ring 6, and a movable pushing structure is arranged between the mounting ring 6 and the stator core 4, and the pushing structure includes a pushing block 73, which is a rectangular block and has two rectangular openings symmetrically arranged on the side of the pushing block 73, and the pushing block 73 is movably installed inside the motor housing 1, and the pushing block 73 is arranged between the stator core 4 and the mounting ring 6, and two sliding grooves 71 are symmetrically arranged on the two corresponding wall surfaces inside the motor housing 1 at the positions corresponding to the pushing block 73, and the sliding groove 71 is a rectangular groove, and a sliding block 72 is movably installed inside the sliding groove 71, and the sliding block 72 is a rectangular block, and the side of the sliding block 72 is fixedly connected to The side of the pushing block 73 is used to hit the center position of the pushing block 73 with a tool when disassembling the stator core 4. The pushing block 73 drives the sliding block 72 to move inside the sliding groove 71. The pushing block 73 squeezes the stator core 4 during the movement, so that the stator core 4 can be quickly taken out from the inside of the motor housing 1. The stator core 4 is equidistantly provided with locking threaded holes 9 at one end corresponding to the front end 2 of the motor. The locking threaded holes 9 penetrate the stator core 4 and extend to the inside of the mounting ring 6. The internal threads of the locking threaded holes 9 are connected with locking threaded columns 10. The stator core 4 and the mounting ring 6 are fixed through the locking threaded holes 9 to improve the stability during use.

[0027] Two movable cavities 81 are provided inside the mounting ring 6, and a movable calibration structure is provided inside the movable cavity 81. The calibration structure includes a movable column 83 movably installed inside the movable cavity 81, and the movable column 83 moves inside the movable cavity 81. When the stator core 4 moves inside the motor housing 1 during installation, the movable column 83 is squeezed, and one end of the movable column 83 is fixedly connected to a reset spring 85, and one end of the reset spring 85 away from the movable column 83 is fixedly connected to the inside of the movable cavity 81. A movable hole 82 is provided on the end surface of the mounting ring 6 at a position corresponding to the movable cavity 81, and the movable hole 82 is a circular hole. A sliding column is fixedly connected to one end of the movable column 83 at a position corresponding to the movable hole 82 84, after the movable column 83 is squeezed, it drives the sliding column 84 to move, and the sliding column 84 is set through the movable hole 82. The side of the motor housing 1 corresponds to the position of the sliding column 84 and is fixedly connected to the limiting block 86. By observing the gaps between the two sliding columns 84 and the limiting blocks 86, it can be judged whether the stator core 4 is installed in place. When the stator core 4 is installed into the interior of the motor housing 1 and the gap between the sliding column 84 and the limiting block 86 is too large, it means that the stator core 4 is installed crookedly. At this time, you only need to knock on the corresponding position of one end of the stator core 4 to make the sliding column 84 contact with the limiting block 86, which means that the installation is in place, which is convenient for the operator to observe the installation result.

[0028] The working principle of this utility model:

[0029] When in use, when installing the stator core 4, align the positioning cavity 11 with the position of the positioning block 12, and insert the stator core 4 into the motor housing 1 by knocking and squeezing. When the stator core 4 moves inside the motor housing 1, it will squeeze the movable column 83, and the movable column 83 moves inside the movable cavity 81. After the movable column 83 is squeezed, it drives the sliding column 84 to move. By observing the gaps between the two sliding columns 84 and the limit blocks 86, it can be judged whether the installation position of the stator core 4 is correct. When the gap between the sliding column 84 and the limit blocks 86 is too large after the stator core 4 is installed in the motor housing 1, it means that the stator core 4 is installed crookedly. At this time, you only need to The installation is completed by knocking on the corresponding position of one end of the stator core 4 so that the sliding column 84 contacts the limit block 86. During the maintenance process, the stator core 4 needs to be removed from the inside of the motor housing 1. First, the locking threaded column 10 is taken out from the inside of the locking threaded hole 9. Since the stator core 4 and the motor housing 1 are in an overly tight fit, the rear end cover 3 of the motor is first removed from the motor housing 1, and the center position of the pushing block 73 is hit with a tool. The pushing block 73 drives the sliding block 72 to move inside the sliding groove 71. The pushing block 73 squeezes the stator core 4 during the movement, so that the stator core 4 can be quickly taken out from the inside of the motor housing 1.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A motor stator that is easy to disassemble, comprising a motor housing (1), a motor front end (2) and a motor rear end cover (3), wherein the motor front end (2) is fixedly connected to one end of the motor housing (1), the motor rear end cover (3) is detachably arranged at one end of the motor housing (1) away from the motor front end (2), a movable stator core (4) is arranged inside the motor housing (1), and a fixed stator winding frame (5) is arranged inside the stator core (4), characterized in that: A mounting ring (6) is fixedly connected to the inner side of the motor housing (1) corresponding to the side of the stator core (4); a movable pushing structure is provided between the mounting ring (6) and the stator core (4); two movable cavities (81) are provided inside the mounting ring (6); a movable calibration structure is provided inside the movable cavity (81); a wiring port (14) is provided on the side of the motor housing (1); and a ventilation port (13) is provided on the end surface of the rear end cover (3) of the motor.

2. The easily disassembled motor stator according to claim 1, characterized in that: The pushing structure comprises a pushing block (73), which is a rectangular block and has two rectangular openings symmetrically formed on the side of the pushing block (73). The pushing block (73) is movably mounted inside the motor housing (1), and the pushing block (73) is arranged between the stator core (4) and the mounting ring (6).

3. The easily disassembled motor stator according to claim 2, characterized in that: Two corresponding wall surfaces inside the motor housing (1) are symmetrically provided with two sliding grooves (71) at positions corresponding to the pushing block (73). The sliding grooves (71) are rectangular grooves. A sliding block (72) is movably installed inside the sliding grooves (71). The sliding block (72) is a rectangular block. The side surface of the sliding block (72) is fixedly connected to the side surface of the pushing block (73).

4. The easily disassembled motor stator according to claim 3, characterized in that: The calibration structure comprises a movable column (83) movably mounted inside a movable cavity (81); one end of the movable column (83) is fixedly connected to a reset spring (85); one end of the reset spring (85) away from the movable column (83) is fixedly connected to the inside of the movable cavity (81); an movable hole (82) is provided on the end surface of the mounting ring (6) at a position corresponding to the movable cavity (81); the movable hole (82) is a circular hole; one end of the movable column (83) is fixedly connected to a sliding column (84) at a position corresponding to the movable hole (82); the sliding column (84) passes through the movable hole (82); and a limiting block (86) is fixedly connected to a side surface of the motor housing (1) at a position corresponding to the sliding column (84).

5. The easily disassembled motor stator according to claim 1, characterized in that: The outer side of the stator core (4) is provided with positioning cavities (11) at equal intervals, the positioning cavities (11) are rectangular cavities, the end surface of the mounting ring (6) is fixedly connected with a positioning block (12) at a position corresponding to the positioning cavity (11), the positioning block (12) is slidably connected inside the positioning cavity (11), and the positioning block (12) is a rectangular block.

6. The easily disassembled motor stator according to claim 1, characterized in that: The stator core (4) is provided with locking threaded holes (9) at equal distances from one end thereof corresponding to the front end (2) of the motor. The locking threaded holes (9) penetrate the stator core (4) and extend to the interior of the mounting ring (6). The internal threads of the locking threaded holes (9) are connected to locking threaded columns (10).

7. The easily disassembled motor stator according to claim 1, characterized in that: The stator winding frame (5) is fixedly connected to the inner side of the stator core (4) by welding, there are at least two stator winding frames (5), and the stator core (4) is installed inside the motor housing (1) by tight fitting.

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