Controllable variable speed stepping motor

Abstract

The utility model relates to the technical field of speed change of a stepping motor, in particular to a controllable speed change stepping motor, which overcomes the defect of speed change of the stepping motor in the prior art and comprises a case, a fixing assembly is arranged on one side of the case, a bottom plate is fixedly connected to one side of the case, and an inner gear is rotatably connected to the surface of the bottom plate. One side of the bottom plate is rotatably connected with a plurality of symmetrical gears, the gears are in meshed connection with the inner gear, the thickness of the gears is larger than that of the inner gear, one side of the bottom plate is fixedly connected with a plurality of guide plates, the positions and the number of the guide plates correspond to those of the gears, the surfaces of the guide plates are slidably connected with rack plates, and the rack plates are in meshed connection with the gears. One side of the rack plate is fixedly connected with a stator plate, an electromagnetic coil is arranged on the surface of the stator plate, and the gear and rack plate assembly is used for controlling the distance between the electromagnetic coil and the rotor plate.

Description

Technical Field

[0001] The utility model relates to the technical field of stepping motor speed change, in particular to a controllable speed-changing stepping motor. Background Art

[0002] A stepper motor is a motor that converts electrical pulse signals into angular displacement or linear displacement. It is often used as an actuator in digital control systems. The stepper motor is based on the principle of electromagnets. It generates electromagnetic torque by changing the air gap magnetic permeability, thereby making the motor rotate. The speed of a stepper motor is generally controlled by increasing the electrical pulse signal to make the electromagnet stronger, thereby controlling the rotation speed. However, this consumes more electricity. By changing the distance between the electromagnetic coil and the rotor, the speed of the stepper motor can also be controlled, which is more cost-effective.

[0003] Therefore, it is necessary to design a controllable variable speed stepper motor with strong practicality and controllable speed. Utility Model Content

[0004] The purpose of the utility model is to provide a controllable variable speed stepping motor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a controllable variable speed stepping motor, comprising a chassis, a fixing component is arranged on one side of the chassis, a bottom plate is fixedly connected to one side of the chassis, an internal gear is rotatably connected to the surface of the bottom plate, a plurality of symmetrical gears are rotatably connected to one side of the bottom plate, the gear is meshed with the internal gear, the thickness of the gear is higher than that of the internal gear, a plurality of guide plates are fixedly connected to one side of the bottom plate, the position and number of the guide plates correspond to the gears, a rack plate is slidably connected to the surface of the guide plate, the rack plate is meshed with the gear, a stator plate is fixedly connected to one side of the rack plate, an electromagnetic coil is arranged on the surface of the stator plate, the gear and rack plate assembly is used to control the distance between the electromagnetic coil and the rotor plate, and control the rotation speed of the rotor plate, a rotating shaft is rotatably connected to one side of the bottom plate, a rotor plate is arranged on the surface of the rotating shaft, the height of the rotor plate corresponds to that of the stator plate, a locking screw is threadedly connected to the inside of the chassis, the locking screw is used to fix the internal gear, and an auxiliary rotating component is arranged on the outer ring of the internal gear.

[0006] According to the above technical solution, the auxiliary rotating assembly includes a connecting rod, a swivel is fixedly connected to the surface of the connecting rod, and the locking screw is connected to the inner thread of the swivel.

[0007] According to the above technical solution, the fixing assembly includes a fixing plate, and one side of the fixing plate is threadedly connected with a locking screw 2.

[0008] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0009] (1) By providing a gear rack assembly, the internal gear drives a plurality of meshing gears on one side to rotate, and the rotation of the gear drives the meshing rack plate on one side to move. The rack plate is slidably connected to the surface of the guide plate fixed on the surface of the bottom plate. As the internal gear rotates, the rack plate approaches or moves away from the rotating shaft. When approaching, the surface of the stator plate provided on the surface of the rack plate is provided with an electromagnetic coil. Every two symmetrical electromagnetic coils are energized at the same time, so that the rotor plate provided on the surface of the rotating shaft corresponds to the two energized electromagnetic coils. As the symmetrical electromagnetic coils are continuously replaced and energized, the rotor plate drives the rotating shaft to rotate, and the positions of the rack plate, the stator plate provided on the surface, and the electromagnetic coil can be changed. The closer to the rotor plate, the faster and stronger the magnetic induction, and the slower the rotor plate rotates. The speed can be controlled. After adjusting to the appropriate position, the locking screw can be used to move the rotor plate toward the inside of the chassis to press against the internal gear. The thread has self-locking properties. After the internal gear is fixed, the motor can work normally. The rotation speed of the stepper motor can be controlled by rotating the internal gear. The operation is simple and the effect is obvious, so that the work efficiency is improved.

[0010] (2) By providing a swivel, the swivel is used to cooperate with the connecting rod to rotate the internal gear, so that the rotation of the internal gear can be achieved on the outside of the chassis, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the stator plate and the rotor plate of the utility model;

[0013] Figure 3 It is a schematic diagram of the gear and internal gear assembly of the utility model;

[0014] In the figure: 1. chassis; 2. fixing plate; 3. bottom plate; 4. rotating shaft; 5. guide plate; 6. rack plate; 7. stator plate; 8. gear; 9. internal gear; 10. connecting rod; 11. swivel; 12. electromagnetic coil; 13. rotor plate; 14. locking screw; 15. locking screw 2. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1-3The utility model provides a technical solution: a controllable variable speed stepping motor, including a chassis 1, a fixed component is arranged on one side of the chassis 1, a bottom plate 3 is fixedly connected to one side of the chassis 1, an internal gear 9 is rotatably connected to the surface of the bottom plate 3, a plurality of symmetrical gears 8 are rotatably connected to one side of the bottom plate 3, the gears 8 are meshed with the internal gear 9, the thickness of the gears 8 is higher than the internal gear 9, a plurality of guide plates 5 are fixedly connected to one side of the bottom plate 3, the position and number of the guide plates 5 correspond to the gears 8, a rack plate 6 is slidably connected to the surface of the guide plate 5, and the rack plate 6 and the gears 8 is meshingly connected, one side of the rack plate 6 is fixedly connected to the stator plate 7, the surface of the stator plate 7 is provided with an electromagnetic coil 12, the gear 8 and the rack plate 6 assembly is used to control the distance between the electromagnetic coil 12 and the rotor plate 13, and control the rotation speed of the rotor plate 13, one side of the base plate 3 is rotatably connected to the shaft 4, the surface of the shaft 4 is provided with a rotor plate 13, the height of the rotor plate 13 corresponds to that of the stator plate 7, the inside of the chassis 1 is connected with a locking screw 14 through the thread, the locking screw 14 is used to fix the internal gear 9, and the outer ring of the internal gear 9 is provided with an auxiliary rotation component.

[0017] Specifically, the internal gear 9 is rotated, and the internal gear 9 drives a plurality of meshing gears 8 on one side to rotate. The rotation of the gear 8 drives a meshing rack plate 6 on one side to move. The rack plate 6 is slidably connected to the surface of the guide plate 5 fixed on the surface of the bottom plate 3. As the internal gear 9 rotates, the rack plate 6 approaches or moves away from the rotating shaft 4. When approaching, the surface of the stator plate 7 provided on the surface of the rack plate 6 is provided with an electromagnetic coil 12. Every two symmetrical electromagnetic coils 12 are energized at the same time, so that the rotor plate 13 provided on the surface of the rotating shaft 4 corresponds to the two energized electromagnetic coils 12. As the symmetrical electromagnetic coils 12 are continuously replaced and energized, the rotation of the rotor plate 13 on the surface of the rotating shaft 4 is performed. The rotor plate 13 drives the rotating shaft 4 to rotate, and the positions of the rack plate 6, the stator plate 7 and the electromagnetic coil 12 arranged on the surface can be changed. The closer to the rotor plate 13, the faster and stronger the magnetic induction, and the slower the rotation rate of the rotor plate 13, and the farther away, the slower the speed can be controlled. After adjusting to the appropriate position, the locking screw 14 can be used to move toward the inside of the chassis 1 to resist the internal gear 9. The thread has self-locking properties. After the internal gear 9 is fixed, the motor can work normally. The rotation speed of the stepper motor can be controlled by rotating the internal gear 9. The operation is simple and the effect is obvious, which improves the work efficiency.

[0018] The auxiliary rotating assembly includes a connecting rod 10 , a rotating ring 11 is fixedly connected to the surface of the connecting rod 10 , and a locking screw 14 is located at the lower side of the rotating ring 11 .

[0019] Specifically, the swivel 11 is used to cooperate with the connecting rod 10 to rotate the internal gear 9, so that the rotation of the internal gear 9 can be achieved outside the chassis 1, which is more convenient. The locking screw 14 is located on the lower side of the swivel 11 and does not affect the fixing work of the locking screw 14.

[0020] The fixing assembly includes a fixing plate 2, and one side of the fixing plate 2 is threadedly connected with a locking screw 15.

[0021] Specifically, the fixing plate 2 is placed on the device, and then the stepping motor and the device are fixed by tightening the screws 15 to complete the subsequent work.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A controllable variable speed stepping motor, comprising a chassis (1), characterized in that: A fixing component is provided on one side of the chassis (1); a bottom plate (3) is fixedly connected to one side of the chassis (1); an internal gear (9) is rotatably connected to the surface of the bottom plate (3); a plurality of symmetrical gears (8) are rotatably connected to one side of the bottom plate (3); the gears (8) are meshingly connected to the internal gear (9); the thickness of the gears (8) is higher than that of the internal gear (9); a plurality of guide plates (5) are fixedly connected to one side of the bottom plate (3); the position and number of the guide plates (5) correspond to the gears (8); a rack plate (6) is slidably connected to the surface of the guide plate (5); the rack plate (6) is meshingly connected to the gear (8); the rack plate (6) is The side of the bottom plate (3) is fixedly connected to the stator plate (7), the surface of the stator plate (7) is provided with an electromagnetic coil (12), the gear (8) and rack plate (6) assembly is used to control the distance between the electromagnetic coil (12) and the rotor plate (13), and control the rotation speed of the rotor plate (13), one side of the bottom plate (3) is rotatably connected to the shaft (4), the surface of the shaft (4) is provided with a rotor plate (13), the height of the rotor plate (13) corresponds to that of the stator plate (7), the inside of the chassis (1) is connected with a locking screw (14) through a thread, the locking screw (14) is used to fix the internal gear (9), and the outer ring of the internal gear (9) is provided with an auxiliary rotation assembly.

2. A controllable variable speed stepping motor according to claim 1, characterized in that: The auxiliary rotating assembly comprises a connecting rod (10), a rotating ring (11) is fixedly connected to the surface of the connecting rod (10), and a locking screw (14) is located on the lower side of the rotating ring (11).

3. The controllable variable speed stepping motor according to claim 1, characterized in that: The fixing assembly comprises a fixing plate (2), and one side of the fixing plate (2) is threadedly connected with a second locking screw (15).

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