Hybrid stepping motor structure

Abstract

The utility model discloses a hybrid stepping motor structure, which belongs to the field of motors and comprises a shell and a rotor, a plurality of left radiating grooves are arranged on the left side of the shell, a plurality of right radiating grooves are arranged on the right side of the shell, and a plurality of connecting blocks are fixedly arranged at the left end and the right end of the outer side of the shell respectively. By arranging the shell, heat in the shell can be conveniently dissipated to the outer side of the shell, a left sleeve ring and a right sleeve ring are connected through a connecting block, a left heat dissipation groove and a right heat dissipation groove can be conveniently covered and wrapped through the left sleeve ring and the right sleeve ring, the left heat dissipation groove and the right heat dissipation groove are respectively covered and wrapped, and dust and water are prevented from entering the shell; meanwhile, the left side of the rotor is limited through the limiting ring, the right side of the rotor is limited through the positioning ring, and therefore installation of the rotor and the shell is limited.

Description

Technical Field

[0001] The utility model relates to the field of motors, and more specifically to a hybrid stepping motor structure. Background Art

[0002] A stepper motor is a motor that converts electrical pulse signals into corresponding angular displacement or linear displacement. Each time a pulse signal is input, the rotor rotates an angle or moves forward one step. The angular displacement or linear displacement output is proportional to the number of input pulses, and the speed is proportional to the pulse frequency. Therefore, a stepper motor is also called a pulse motor.

[0003] For example, a hybrid stepper motor rotor structure disclosed in announcement number CN202798419U includes a rotating shaft and a rotating body, the rotating body includes a plurality of rotor cores formed by stacking rotor punchings, the outer ring of the rotor punchings has a plurality of punching teeth, the center line angle of adjacent punching teeth is α, there are permanent magnets between adjacent rotor cores, the rotating shaft is provided with an aluminum sleeve, the rotor core and the permanent magnet are both supported on the aluminum sleeve, the inner ring of the rotor punching is provided with assembly teeth and marking grooves, and the center line of the punching teeth closest to the assembly teeth is at an angle of α / 4 with the center line of the assembly teeth, the aluminum sleeve is provided with assembly grooves matching the assembly teeth, and the marking grooves of the rotor punchings of the adjacent rotor cores are respectively located on both sides of the assembly teeth. The utility model has a compact structure and is easy to assemble, which reduces the rotor inertia.

[0004] It can be seen from the above-mentioned public scheme that the motor casing is currently set to be closed for waterproof and dustproof purposes, but the closed setting will reduce the heat discharge from the inside of the casing to the outside, so that the heat is accumulated inside the casing and it is easy to burn the motor components inside the casing, affecting the use effect and service life of the motor. At the same time, the motor shaft and the rotor are installed, and the rotor and the casing are mostly installed by pressing the rotor down through a cylinder to make it snap into the inside of the casing. There is no limit device inside the casing to limit the position, which affects the installation stability of the motor shaft and the rotor, and the rotor and the casing after long-term use. Utility Model Content

[0005] The utility model aims to provide a hybrid stepping motor structure to solve the problems of motor heat dissipation and installation of motor component assemblies.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hybrid stepping motor structure, including a shell and a rotor, a plurality of left heat dissipation grooves are arranged on the left side of the shell, a plurality of right heat dissipation grooves are arranged on the right side of the shell, a plurality of connecting blocks are fixedly arranged on the left and right ends of the outer side of the shell, a left sleeve and a right sleeve are fixedly arranged on one end of the connecting block, a left stopper sleeve and a right stopper sleeve are fixedly arranged on the left and right ends of the outer side of the shell, a left end cover is fixedly connected to the left side of the shell by a plurality of bolts, a right end cover is fixedly connected to the right side of the shell by a plurality of bolts, a limiting ring is fixedly arranged on the right side of the left end cover, the limiting ring is provided with a plurality of through holes, a positioning ring is fixedly arranged on the right side of the inner part of the shell, and retaining rings are respectively arranged on the left and right sides of the rotor, and the arrangement of the left heat dissipation groove and the right heat dissipation groove facilitates the inner and outer ends of the shell to be conveniently connected. The heat of the outside of the shell is dissipated to the outside of the shell, and the left sleeve ring and the right sleeve ring are connected by a connecting block, so that the left heat sink and the right heat sink are conveniently covered and wrapped by the left sleeve ring and the right sleeve ring, and the left heat sink and the right heat sink are covered and wrapped respectively to prevent dust and water from entering the interior of the shell, and the setting of the left and right blocking sleeves also plays a role in shielding dust and water, thereby preventing heat from gathering inside the shell and burning the motor component components inside the shell. At the same time, the left side of the rotor is limited by the limiting ring, and the right side of the rotor is limited by the positioning ring, so as to limit the installation of the rotor and the shell, and the left connection between the rotor and the motor shaft is blocked and limited by the left retaining rings set on the left and right, and the right connection between the rotor and the motor shaft is blocked and limited, thereby preventing the motor component components from moving during use and affecting the use.

[0007] Preferably, the left heat sink and the right heat sink are of the same size, and the number of the left heat sink and the right heat sink is the same. The connecting block is provided to limit the installation of the left ring and the right ring respectively. The bearing sleeve is provided to facilitate the installation of the snap-in bearing. The limiting ring is used to provide a through hole to facilitate the movement of heat through the through hole to the inside of the left heat sink, and then to be discharged through the left heat sink.

[0008] Preferably, the left ring is fixedly arranged at the outer left end of the shell, and the right ring is fixedly arranged at the outer right end of the shell. The left ring and the right ring are the same in size. The permanent magnet, the rotor and the motor shaft are respectively existing technologies, and the technical solution will not be repeated.

[0009] Preferably, the left stopper sleeve and the right stopper sleeve are fixedly arranged inside the left collar and the right collar respectively, and the left end cover and the right end cover are fixedly arranged with bearing sleeves respectively, and the bearing sleeves are fixedly clamped inside.

[0010] Preferably, the limiting ring is arranged on the inner left side of the shell, the number of the through holes is the same as the number of the left heat dissipation slot, and the through holes are arranged on one side of the left heat dissipation slot.

[0011] Preferably, the rotor is arranged inside the housing, the left side of the rotor contacts the right side of the limiting ring, and the right side of the rotor contacts the left side of the positioning ring.

[0012] Preferably, a permanent magnet is slidably engaged inside the shell, rotors are fixedly disposed on the left and right sides of the permanent magnet, and a motor shaft is inserted between the permanent magnet and the rotor.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model provides a left heat dissipation groove and a right heat dissipation groove to facilitate the heat inside the shell to be dissipated to the outside of the shell, and the left sleeve ring and the right sleeve ring are connected by a connecting block, so that the left heat dissipation groove and the right heat dissipation groove are conveniently covered and wrapped by the left sleeve ring and the right sleeve ring, and the left heat dissipation groove and the right heat dissipation groove are covered and wrapped respectively to prevent dust and water from entering the interior of the shell, and the setting of the left and right blocking sleeves also plays a role in shielding dust and water, thereby preventing heat from accumulating inside the shell and burning the motor component components inside the shell.

[0015] (2) The utility model limits the installation of the rotor and the housing by limiting the left side of the rotor through a limiting ring and limiting the right side of the rotor through a positioning ring. By arranging retaining rings on the left and right sides, the left connection between the rotor and the motor shaft is blocked and limited, and the right connection between the rotor and the motor shaft is blocked and limited, thereby avoiding movement of the motor component assembly during use and affecting use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial cross-sectional view of the overall structure of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 4 It is a three-dimensional diagram of the connection between the permanent magnet, the rotor and the motor shaft of the utility model;

[0020] Figure 5 A three-dimensional diagram of the housing of the utility model;

[0021] Figure 6 It is a three-dimensional diagram of the left sleeve ring of the utility model;

[0022] Figure 7 It is a three-dimensional diagram of the left stopper sleeve of the present utility model.

[0023] Description of the numbers in the figure:

[0024] 1 housing, 2 left heat sink, 3 right heat sink, 4 connecting block, 5 left sleeve, 6 right sleeve, 7 left stop sleeve, 8 right stop sleeve, 9 left end cover, 10 right end cover, 11 bearing sleeve, 12 bearing, 13 limit ring, 14 through hole, 15 positioning ring, 16 permanent magnet, 17 rotor, 18 motor shaft, 19 retaining ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figure 1-7 A hybrid stepping motor structure shown in the figure includes a shell 1 and a rotor 17. A plurality of left heat dissipation slots 2 are arranged on the left side of the shell 1, a plurality of right heat dissipation slots 3 are arranged on the right side of the shell 1, a plurality of connecting blocks 4 are fixedly arranged on the left and right ends of the outer side of the shell 1, a left sleeve 5 and a right sleeve 6 are fixedly arranged on one end of the connecting block 4, a left stopper sleeve 7 and a right stopper sleeve 8 are fixedly arranged on the left and right ends of the outer side of the shell 1, a left end cover 9 is fixedly connected to the left side of the shell 1 by a plurality of bolts, a right end cover 10 is fixedly connected to the right side of the shell 1 by a plurality of bolts, a limiting ring 13 is fixedly arranged on the right side of the left end cover 9, and the limiting ring 13 is provided with a plurality of through holes 14, a positioning ring 15 is fixedly arranged on the right side of the inner side of the shell 1, and retaining rings 19 are respectively arranged on the left and right sides of the rotor 17.

[0028] In order to facilitate the heat dissipation of the motor, the left heat dissipation groove 2 and the right heat dissipation groove 3 are of the same size, the number of the left heat dissipation groove 2 and the right heat dissipation groove 3 is the same, the left collar 5 is fixedly arranged at the left end of the outer side of the shell 1, the right collar 6 is fixedly arranged at the right end of the outer side of the shell 1, the left collar 5 and the right collar 6 are of the same size, the left stopper sleeve 7 and the right stopper sleeve 8 are respectively fixedly arranged inside the left collar 5 and the right collar 6, the left end cover 9 and the right end cover 10 are respectively fixedly arranged with bearing sleeves 11, and the bearing sleeve 11 is fixedly clamped with a bearing 12 inside. The limiting ring 13 is arranged on the left side of the inner part of the shell 1, the number of the through holes 14 is the same as the number of the left heat dissipation slot 2, the through holes 14 are arranged on one side of the left heat dissipation slot 2, the rotor 17 is arranged inside the shell 1, the left side of the rotor 17 contacts the right side of the limiting ring 13, and the right side of the rotor 17 contacts the left side of the positioning ring 15, the inner part of the shell 1 is slidably clamped with a permanent magnet 16, the left and right sides of the permanent magnet 16 are respectively fixedly provided with the rotor 17, and the permanent magnet 16 and the rotor 17 are plugged with a motor shaft 18.

[0029] In this embodiment, the arrangement of the left heat dissipation groove 2 and the right heat dissipation groove 3 facilitates the heat inside the shell 1 to be dissipated to the outside of the shell 1, and the left sleeve 5 and the right sleeve 6 are connected by the connecting block 4, so that the left heat dissipation groove 2 and the right heat dissipation groove 3 are conveniently covered and wrapped by the left sleeve 5 and the right sleeve 6, and the left heat dissipation groove 2 and the right heat dissipation groove 3 are covered and wrapped respectively to prevent dust and water from entering the interior of the shell 1, and the arrangement of the left blocking sleeve 7 and the right blocking sleeve 8 also plays a role in blocking dust and water, thereby preventing heat from accumulating inside the shell 1 and burning the motor component components inside the shell 1. At the same time, the left side of the rotor 17 is limited by the limiting ring 13, and the right side of the rotor 17 is limited by the positioning ring 15, so as to limit the installation of the rotor 17 and the shell 1, and the left connection of the rotor 17 and the motor shaft 18 is blocked and limited by the left and right retaining rings 19, and the right connection of the rotor 17 and the motor shaft 18 is blocked and limited, so as to prevent the motor component components from moving during use and affecting the use.

[0030] The heat on the left side of the rotor 17 moves to the left heat dissipation groove 2 through the through hole 14 and is then discharged. The heat on the right side of the rotor 17 is discharged to the outside of the housing 1 through the right heat dissipation groove 3, thereby achieving the effect of heat dissipation. The rotor 17 is slidably engaged so that the rotor 17 is slidably inserted into the interior of the housing 1. Then the right side of the rotor 17 contacts the left side of the positioning ring 15, and the left side of the rotor 17 contacts the right side of the limit ring 13. Then the rotor 17 can be limited and fixed, thereby limiting the installation of the rotor 17 and the housing 1. By arranging the retaining rings 19 on the left and right, the left connection between the rotor 17 and the motor shaft 18 is blocked and limited, and the right connection between the rotor 17 and the motor shaft 18 is blocked and limited, thereby avoiding the movement of the motor component assembly during use and affecting the use.

[0031] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A hybrid stepping motor structure, comprising a housing (1) and a rotor (17), characterized in that: The left side of the shell (1) is provided with a plurality of left heat dissipation slots (2), the right side of the shell (1) is provided with a plurality of right heat dissipation slots (3), the left and right ends of the outer side of the shell (1) are respectively fixedly provided with a plurality of connecting blocks (4), one end of the connecting block (4) is fixedly provided with a left sleeve (5) and a right sleeve (6), the left and right ends of the outer side of the shell (1) are respectively fixedly provided with a left stopper sleeve (7) and a right stopper sleeve (8), the left side of the shell (1) is fixedly clamped with a left end cover (9) by a plurality of bolts, the right side of the shell (1) is fixedly clamped with a right end cover (10) by a plurality of bolts, the right side of the left end cover (9) is fixedly provided with a limit ring (13), the limit ring (13) is provided with a plurality of through holes (14), the right side of the inner side of the shell (1) is fixedly provided with a positioning ring (15), and the left and right sides of the rotor (17) are respectively provided with retaining rings (19).

2. A hybrid stepping motor structure according to claim 1, characterized in that: The left heat dissipation slot (2) and the right heat dissipation slot (3) are of the same size, and the left heat dissipation slot (2) and the right heat dissipation slot (3) are of the same number.

3. The hybrid stepping motor structure according to claim 1, characterized in that: The left collar (5) is fixedly arranged at the left end of the outer side of the housing (1), and the right collar (6) is fixedly arranged at the right end of the outer side of the housing (1). The left collar (5) and the right collar (6) are of the same size.

4. The hybrid stepping motor structure according to claim 1, characterized in that: The left stopper sleeve (7) and the right stopper sleeve (8) are respectively fixedly arranged inside the left sleeve ring (5) and the right sleeve ring (6); the left end cover (9) and the right end cover (10) are respectively fixedly arranged with a bearing sleeve (11); and the interior of the bearing sleeve (11) is fixedly clamped with a bearing (12).

5. The hybrid stepping motor structure according to claim 1, characterized in that: The limiting ring (13) is arranged on the left side inside the housing (1), the number of the through holes (14) is the same as the number of the left heat dissipation slot (2), and the through holes (14) are arranged on one side of the left heat dissipation slot (2).

6. The hybrid stepping motor structure according to claim 1, characterized in that: The rotor (17) is arranged inside the housing (1), the left side of the rotor (17) contacts the right side of the limiting ring (13), and the right side of the rotor (17) contacts the left side of the positioning ring (15).

7. The hybrid stepping motor structure according to claim 1, characterized in that: A permanent magnet (16) is slidably engaged inside the housing (1), a rotor (17) is fixedly arranged on the left and right sides of the permanent magnet (16), and a motor shaft (18) is inserted between the permanent magnet (16) and the rotor (17).

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