A high-safety stepping motor

Abstract

The application relates to the motor technical field and discloses a high-safety stepping motor, which comprises four groups of supporting legs, the top of each of the four groups of supporting legs is fixedly connected with a bottom plate, the side, away from the supporting leg, of the bottom plate is fixedly connected with a motor, the left side of the motor is fixedly connected with a rotating rod, the outer wall of the rotating rod is provided with a fan blade, the side, close to the rotating rod, of the fan blade is fixedly connected with the outer wall of the rotating rod, the sealing mechanism is further arranged, the sealing mechanism comprises a fitting block, and the outer wall of the fitting block is fixedly connected with the motor at the side, close to the inner wall of the motor. The sealing mechanism is arranged, the motor is in a sealed state in a non-working state, external dust and water vapor are effectively blocked from entering the motor, damage to the motor is avoided, when the motor needs to be cooled, the sealing mechanism can be timely opened, the hot air flow in the motor is smoothly discharged, the cooling efficiency of the motor is ensured, and the hot air flow is prevented from damaging the motor.

Description

Technical Field

[0001] This invention relates to the field of motor technology, specifically to a stepper motor with high safety. Background Technology

[0002] A stepper motor is an open-loop control motor that converts electrical pulse signals into angular or linear displacement. Each input pulse signal causes the motor to rotate by a fixed angle, called the step angle. It has high precision and periodic motion, and can achieve accurate positioning without feedback devices. It has a simple structure and reliable operation, and is widely used in automation equipment, 3D printers, CNC machine tools and other fields. It can achieve precise position control and speed regulation, and provide key power support for the automated operation of various precision machines.

[0003] Patent application CN202321988902.1 discloses a high-safety stepper motor, specifically relating to the field of stepper motor technology. The motor includes a main body, a stator inside the main body, a rotor inside the stator, a drive shaft inside the rotor, a heat dissipation vent on the top of the main body, a sliding groove inside the heat dissipation vent, and a fire extinguishing device inside the sliding groove.

[0004] When existing motors dissipate heat internally, the sealed environment prevents smooth airflow and hinders timely heat dissipation. This can cause some damage to the motor's internal structure, thereby reducing its lifespan. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a stepper motor with high safety to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-safety stepper motor, comprising four sets of support legs, each set of support legs having a base plate fixedly connected to its top; a motor being fixedly connected to the side of the base plate away from the support legs; a rotating rod being fixedly connected to the left side of the motor; fan blades being provided on the outer wall of the rotating rod; and the side of the fan blades closest to the rotating rod being fixedly connected to the outer wall of the rotating rod. The motor also includes:

[0007] A sealing mechanism includes a bonding block. The outer wall of the bonding block is fixedly connected to the motor on the side closest to the inner wall of the motor. An arc-shaped hole is formed on the surface of the bonding block. Two sets of contact plates are provided on the side of the bonding block closest to the motor. Both sets of contact plates are in contact with the bonding block on the side closest to the bonding block. A first connecting rod is fixedly connected to the side of each of the two sets of contact plates furthest from the bonding block. A first fixing plate is fixedly connected to the side of each of the two sets of first connecting rods furthest from the contact plates. An arc-shaped plate is rotatably connected to the side of each of the two sets of first fixing plates closest to the inner wall of the motor via a first rotating shaft. Limiting rods are provided on the side of each of the two sets of arc-shaped plates closest to the bonding block. The side of each of the two sets of limiting rods closest to the arc-shaped plate is fixedly connected to the outer wall of the arc-shaped plate. The side of each of the two sets of limiting rods closest to the bonding block is fixedly connected to the outer wall of the bonding block. The contact plates are used to keep the motor in a sealed state.

[0008] According to the above technical solution, it also includes a drainage mechanism, which includes two sets of second connecting rods. The two sets of second connecting rods are fixedly connected to the limiting rod on the side near the limiting rod. A second fixing plate is provided on the outer wall of each set of second connecting rods. The second connecting rod is used to limit the sliding distance of the second fixing plate.

[0009] According to the above technical solution, the side of each of the two sets of second fixing plates near the second connecting rod is slidably connected to the outer wall of the second connecting rod. Both sides of the two sets of second fixing plates are rotatably connected to pressing blocks through the second rotating shaft. The pressing blocks are used to drive the arc plate to move synchronously.

[0010] According to the above technical solution, the side of each of the four sets of pressing blocks near the arc plate is fixedly connected to the outer wall of the arc plate, and a positioning ring is provided on the right side of each of the two sets of second connecting rods. The second connecting rod is used to fix the position of the positioning ring.

[0011] According to the above technical solution, the two sets of positioning rings are fixedly connected to the outer wall of the second connecting rod on the side closest to the second connecting rod, and the two sets of positioning rings are rotatably connected to four sets of rotating rods through a third rotating shaft on the side furthest from the second connecting rod. The eight sets of rotating rods are fixedly connected to an opening and closing cover on the side furthest from the positioning ring. The opening and closing cover is used to change the airflow direction.

[0012] According to the above technical solution, the pushing mechanism includes a curved plate. The side of the curved plate closest to the first fixed plate is fixedly connected to the outer wall of the first fixed plate. Two sets of sliding rods are fixedly connected to the side of the curved plate away from the first fixed plate. Springs are provided on the outer walls of both sets of sliding rods. The sliding rods are used to limit the contraction distance of the springs.

[0013] According to the above technical solution, both sets of springs are in contact with the outer wall of the sliding rod near the sliding rod, and both sets of sliding rods are fixedly connected to a sliding plate on the side away from the curved plate. Both sets of sliding plates are provided with an inclined plate on the side close to each other. The spring is used to push the sliding plate to perform a reset movement.

[0014] According to the above technical solution, both sets of inclined plates are rotatably connected to the sliding plate through the fourth rotating shaft. Both sets of sliding plates are fixedly connected to a pulling plate on the side near the curved plate. The pulling plate is fixedly connected to the outer wall of the second fixed plate on the side near the second fixed plate. The pulling plate is used to push the second fixed plate to move.

[0015] Compared with the prior art, the present invention provides a stepper motor with high safety and has the following beneficial effects:

[0016] 1. This invention, by setting a sealing mechanism, keeps the motor in a sealed state when it is not in operation, effectively preventing external dust and moisture from entering the motor and avoiding damage to the motor. When the motor needs to dissipate heat, the sealing mechanism can open in time to ensure that the hot air inside the motor can be discharged smoothly, ensuring the motor's heat dissipation efficiency and preventing the hot air from damaging the inside of the motor.

[0017] 2. This invention uses an arc-shaped plate to drive the bonding block to rotate, ensuring that the bonding block can open in time when the motor is dissipating heat. In this way, the hot airflow inside the motor will not stagnate for a long time and cannot be discharged, effectively ensuring the safety of the motor.

[0018] 3. By setting up a flow guiding mechanism, the fan blades rotate and drive the airflow to flow towards the flow guiding mechanism. The flow guiding mechanism can increase the driving force of the airflow, thereby accelerating the airflow speed and ensuring that the airflow is sufficient to drive the driving mechanism to move.

[0019] 4. The present invention provides a pushing mechanism, which can release the sealing state of the sealing mechanism by moving the mechanism. At the same time, when the motor fan blades stop working, the pushing mechanism can drive the sealing mechanism and the diversion mechanism to reset, ensuring that they are not affected in subsequent use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the rotating rod of the present invention;

[0022] Figure 3 This is a schematic diagram of the fan blade structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the sealing mechanism of the present invention;

[0024] Figure 5This is a schematic diagram of the contact plate of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the opening and closing cover of the present invention;

[0026] Figure 7 This is a schematic diagram of the drainage mechanism of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the actuating mechanism of the present invention.

[0028] In the diagram: 1. Support leg; 2. Base plate; 3. Rotating rod; 4. Motor; 5. Fan blade; 6. Sealing mechanism; 601. Adhesive block; 602. Contact plate; 603. First fixing plate; 604. Arc plate; 605. First connecting rod; 606. Arc hole; 607. Limiting rod; 7. Drainage mechanism; 701. Pressing block; 702. Opening and closing cover; 703. Second fixing plate; 704. Second connecting rod; 705. Positioning ring; 706. Rotating rod; 8. Pushing mechanism; 801. Bent plate; 802. Sliding rod; 803. Spring; 804. Pulling plate; 805. Sliding plate; 806. Inclined plate. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Example 1: See Figures 1-5The present invention provides a technical solution: a high-safety stepper motor 4, comprising four sets of support legs 1, each set of support legs 1 having a base plate 2 fixedly connected to its top, a motor 4 fixedly connected to the side of the base plate 2 away from the support legs 1, a rotating rod 3 fixedly connected to the left side of the motor 4, a fan blade 5 provided on the outer wall of the rotating rod 3, the side of the fan blade 5 closest to the rotating rod 3 being fixedly connected to the outer wall of the rotating rod 3, and further comprising:

[0033] The sealing mechanism 6 includes a bonding block 601. The outer wall of the bonding block 601, near the inner wall of the motor 4, is fixedly connected to the motor 4. An arc-shaped hole 606 is formed on the surface of the bonding block 601. Two sets of contact plates 602 are provided on the side of the bonding block 601 near the motor 4, and both sets of contact plates 602 are in contact with the bonding block 601. A first connecting rod 605 is fixedly connected to the side of each of the two sets of contact plates 602 away from the bonding block 601. A first fixing plate 603 is fixedly connected to the side of each of the two sets of first connecting rods 605 away from the contact plates 602. By setting the contact plates 602, the sealing mechanism can be adjusted according to the contact plate 606. The movement of plate 2 is used to control the sealing state of motor 4, thus ensuring that the inside of motor 4 is protected from external dust and effectively maintaining the operating environment of motor 4. The two sets of first fixing plates 603 are rotatably connected to arc plates 604 on the side near the inner wall of motor 4 through the first rotating shaft. Limiting rods 607 are provided on the side of the two sets of arc plates 604 near the bonding block 601. The side of the two sets of limiting rods 607 near the arc plates 604 is fixedly connected to the outer wall of arc plates 604, and the side of the two sets of limiting rods 607 near the bonding block 601 is fixedly connected to the outer wall of bonding block 601. The contact plate 602 is used to keep motor 4 in a sealed state.

[0034] The working principle of this embodiment is as follows: When the motor 4 is not in operation, the contact plate 602 is located in the arc-shaped hole 606 inside the bonding block 601. After the motor 4 starts, it drives the rotating rod 3 to rotate. The fan blade 5 on the outer wall of the rotating rod 3 rotates synchronously. The rotation of the fan blade 5 causes the airflow inside the motor 4 to flow towards the side closer to the sealing mechanism 6. At this time, under the push of the pressing mechanism, the arc-shaped plate 604 rotates away from the rotating rod 3 through the first fixed plate 603. While the arc-shaped plate 604 rotates, it drives the first connecting rod 605 to rotate synchronously. The angle change of the first connecting rod 605 also drives the bonding plate at the bottom to rotate together. As the bonding plate tilts, it can quickly move out of the arc-shaped hole 606. After the bonding plate moves out of the arc-shaped hole 606, under the drive of the fan blade 5, the airflow begins to flow out of the arc-shaped hole 606 and flows to the outside through the bonding plate. After the arc-shaped plate 604 completes the movement, it is in a vertical state compared to the initial position.

[0035] Example 2: Please refer to Figures 6-7Based on Embodiment 1, the present invention provides a technical solution: the drainage mechanism 7 includes two sets of second connecting rods 704. The two sets of second connecting rods 704 are fixedly connected to the limiting rod 607 on the side near the limiting rod 607. A second fixing plate 703 is provided on the outer wall of each set of second connecting rods 704. The second connecting rod 704 is used to limit the sliding distance of the second fixing plate 703. The two sets of second fixing plates 703 are slidably connected to the outer wall of the second connecting rod 704 on the side near the second connecting rod 704. Pressing blocks 701 are rotatably connected to both sides of the two sets of second fixing plates 703 via a second rotating shaft. The pressing blocks 701 are used to drive the arc-shaped plate 604 to move synchronously. The four sets of pressing blocks 701 are fixedly connected to the outer wall of the arc-shaped plate 604 on the side near the arc-shaped plate 604. A positioning ring 705 is provided on the right side of each set of second connecting rods 704. 704 is used to fix the position of the positioning ring 705. The two sets of positioning rings 705 are fixedly connected to the outer wall of the second connecting rod 704 on the side closest to the second connecting rod 704. The two sets of positioning rings 705 are rotatably connected to four sets of rotating rods 706 through the third rotating shaft on the side furthest from the second connecting rod 704. By setting the rotating rods 706, the expansion angle of the opening and closing cover 702 can be precisely adjusted according to its rotation angle. In this way, the opening and closing cover 702 can change its shape according to different airflow conditions to ensure good adaptability under various airflow conditions. The opening and closing cover 702 is fixedly connected to the side of the eight sets of rotating rods 706 furthest from the positioning ring 705. By setting the opening and closing cover 702, it can be ensured that the airflow will accelerate after passing through the opening and closing cover 702, thereby ensuring that the airflow can have a strong driving force. The opening and closing cover 702 is used to change the airflow direction.

[0036] The working principle of this embodiment is as follows: When the motor 4 drives the fan blade 5 to rotate, the rotation of the fan blade 5 causes the airflow to flow to the other side. During the flow, this airflow comes into contact with the opening and closing cover 702. Since the opening and closing cover 702 is tilted at a large angle towards the side facing the fan blade 5, the airflow flows along the inner wall of the opening and closing cover 702. After the airflow comes into contact with the inner wall of the opening and closing cover 702, it will cause it to expand outward, thereby pulling the rotating rod 706 to rotate outward. In this way, when the opening and closing cover 702 expands outward, the rotating rod 706 can provide effective support for it, ensuring that the opening and closing cover 702 will not swing arbitrarily. When the airflow flows through the inner wall of the opening and closing cover 702 to the pressing block 701, it will come into contact with the positioning ring 705. At this time, the gap between the positioning ring 705 and the opening and closing cover 702 is small, which increases the airflow velocity. When the airflow flows out from the positioning ring 705, the driving force is enhanced, thereby pushing the pushing mechanism 8 to move. The pushing mechanism 8 then pushes the second fixed plate 703 to slide on the second connecting rod 704 to the side away from the positioning ring 705. When the second fixed plate 703 suddenly slides, the pressing block 701 begins to rotate upward, thereby ensuring that the pressing block 701 can work normally.

[0037] Example 3: Please refer to Figure 8 Based on Embodiments 1 and 2, the present invention provides a technical solution that further includes a pushing mechanism 8. The pushing mechanism 8 includes a curved plate 801. The side of the curved plate 801 closest to the first fixed plate 603 is fixedly connected to the outer wall of the first fixed plate 603. The side of the curved plate 801 furthest from the first fixed plate 603 is fixedly connected to two sets of sliding rods 802. Springs 803 are provided on the outer walls of both sets of sliding rods 802. The springs 803 ensure that the pushing mechanism 8 smoothly resets after one movement, preparing for the next operation. When the pushing mechanism 8 operates, the springs 803 are compressed or stretched, accumulating elastic potential energy. When the pushing action ends, the springs 803 release energy, driving the mechanism back to its initial position for precise reset, ensuring seamless connection of each work cycle. The sliding rods 802 limit the retraction distance of the springs 803. All rods 802 are in contact with the outer wall of the sliding rod 802. A sliding plate 805 is fixedly connected to the side of each sliding rod 802 away from the curved plate 801. An inclined plate 806 is provided on the side of each sliding plate 805 that is close to each other. The spring 803 is used to push the sliding plate 805 to perform a reset movement. Both inclined plates 806 are rotatably connected to the sliding plate 805 through a fourth rotating shaft. A pulling plate 804 is fixedly connected to the side of each sliding plate 805 that is close to the curved plate 801. After the pulling plate 804 is set, when the pulling plate 804 moves, it can immediately drive the second fixed plate 703 to move synchronously. In this way, the second fixed plate 703 can be quickly pressed down, ensuring that the pressing block 701 achieves reverse rotation. The side of each pulling plate 804 that is close to the second fixed plate 703 is fixedly connected to the outer wall of the second fixed plate 703. The pulling plate 804 is used to push the second fixed plate 703 to move.

[0038] The working principle of this embodiment is as follows: When the airflow flows out from the positioning ring 705, it first contacts the inclined plate 806. The inclined plate 806 begins to rotate slowly under the push of the airflow until it becomes inclined. The inclined plate 806 then stops rotating. When the inclined plate 806 is in an inclined state, it can increase the windward area. Then the inclined plate 806 drives the sliding plate 805 to slide on the sliding rod 802. When the sliding plate 805 slides on the sliding rod 802, it pushes the spring 803 on the outer wall of the sliding rod 802 to contract. At the same time, the sliding plate 805 drives the pulling plate 804 to move down synchronously. When the pulling plate 804 moves down, it pulls the second fixed plate 703 to move down. When the fan blade 5 stops rotating, the spring 803 begins to rebound. The rebound force of the spring 803 pushes the sliding plate 805 to slide on the sliding rod 802. At this time, the inclined plate 806 loses the airflow thrust and begins to reset. The pulling plate 804 drives the second fixed plate 703 to reset synchronously, completing the entire working cycle.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-safety stepper motor, comprising four sets of support legs (1), each set of support legs (1) having a base plate (2) fixedly connected to its top, a motor (4) fixedly connected to the side of the base plate (2) away from the support legs (1), a rotating rod (3) fixedly connected to the left side of the motor (4), a fan blade (5) provided on the outer wall of the rotating rod (3), the side of the fan blade (5) near the rotating rod (3) being fixedly connected to the outer wall of the rotating rod (3), characterized in that, Also includes: A sealing mechanism (6) includes a bonding block (601). The outer wall of the bonding block (601) is fixedly connected to the motor (4) on the side closest to the inner wall of the motor (4). An arc-shaped hole (606) is provided on the surface of the bonding block (601). Two sets of contact plates (602) are provided on the side of the bonding block (601) closest to the motor (4). The side of the two sets of contact plates (602) closest to the bonding block (601) is in contact with the bonding block (601). A first connecting rod (605) is fixedly connected to the side of the two sets of contact plates (602) away from the bonding block (601). The two sets of first connecting rods (605) are located away from the side of the bonding block (601). One side of the contact plate (602) is fixedly connected to a first fixing plate (603). The two sets of first fixing plates (603) are rotatably connected to an arc plate (604) via a first rotating shaft on the side of the two sets of arc plates (604) near the bonding block (601). The two sets of limiting rods (607) are fixedly connected to the outer wall of the arc plate (604) on the side of the two sets of limiting rods (607) near the bonding block (601). The two sets of limiting rods (607) are fixedly connected to the outer wall of the bonding block (601) on the side of the bonding block (601). The contact plate (602) is used to keep the motor (4) in a sealed state. It also includes a pushing mechanism (8), which includes a curved plate (801). The side of the curved plate (801) close to the first fixed plate (603) is fixedly connected to the outer wall of the first fixed plate (603). The side of the curved plate (801) away from the first fixed plate (603) is fixedly connected to two sets of sliding rods (802). The outer walls of the two sets of sliding rods (802) are provided with springs (803). The sliding rods (802) are used to limit the contraction distance of the springs (803). Both sets of springs (803) are in contact with the outer wall of the sliding rod (802) near the sliding rod (802). Both sets of sliding rods (802) are fixedly connected to a sliding plate (805) on the side away from the curved plate (801). Both sets of sliding plates (805) are provided with an inclined plate (806) on the side close to each other. The spring (803) is used to push the sliding plate (805) to perform a reset movement.

2. The stepper motor with high safety according to claim 1, characterized in that: It also includes a drainage mechanism (7), which includes two sets of second connecting rods (704). The two sets of second connecting rods (704) are fixedly connected to the limiting rod (607) on the side near the limiting rod (607). The outer walls of the two sets of second connecting rods (704) are provided with second fixing plates (703). The second connecting rods (704) are used to limit the sliding distance of the second fixing plates (703).

3. A stepper motor with high safety according to claim 2, characterized in that: Both sets of the second fixing plates (703) are slidably connected to the outer wall of the second connecting rod (704) on the side near the second connecting rod (704). Both sides of the two sets of the second fixing plates (703) are rotatably connected to pressing blocks (701) through the second rotating shaft. The pressing blocks (701) are used to drive the arc plate (604) to move synchronously.

4. A stepper motor with high safety according to claim 3, characterized in that: The four sets of pressing blocks (701) are all fixedly connected to the outer wall of the arc plate (604) on the side near the arc plate (604). The two sets of second connecting rods (704) are provided with positioning rings (705) on the right side. The second connecting rods (704) are used to fix the position of the positioning rings (705).

5. A high-safety stepper motor according to claim 4, characterized in that: Both sets of positioning rings (705) are fixedly connected to the outer wall of the second connecting rod (704) on the side closest to the second connecting rod (704). Both sets of positioning rings (705) are rotatably connected to four sets of rotating rods (706) via a third rotating shaft on the side furthest from the second connecting rod (704). An opening and closing cover (702) is fixedly connected to the side of the eight sets of rotating rods (706) furthest from the positioning rings (705). The opening and closing cover (702) is used to change the airflow direction.

6. A stepper motor with high safety according to claim 5, characterized in that: Both sets of inclined plates (806) are rotatably connected to sliding plates (805) via a fourth rotating shaft. Both sets of sliding plates (805) are fixedly connected to a pull plate (804) on the side near the curved plate (801). The pull plate (804) is fixedly connected to the outer wall of the second fixed plate (703) on the side near the second fixed plate (703). The pull plate (804) is used to push the second fixed plate (703) to move.

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