Novel holder motor

Abstract

The novel pan-tilt motor comprises a rotor and a stator, a shifting block is arranged at the bottom end of a rotor shell, a steel ball groove is formed in the upper top face of a stator shell, the steel ball groove is distributed in an arc shape, the two ends of the steel ball groove are close to each other and not communicated with each other, a steel ball is matched in the steel ball groove, and a shifting groove is formed between the two ends, not communicated with each other, of the steel ball groove. According to the utility model, the rotor rotates to drive the shifting block to rotate and push the steel ball to rotate in the steel ball groove, and after the rotor rotates for one circle, the steel ball is limited by the steel ball groove, so that the steel ball can be separated from the shifting block, and the shifting block can be separated from the steel ball groove. When the rotating shaft rotates, the shifting block stops, the rotor is blocked, at the moment, the rotating shaft can rotate by a circle in the opposite direction, the overall rotating range is larger than 360 degrees, and therefore the 360-degree dead-angle-free rotating problem is ingeniously solved through the simple structure, and compared with the prior art, the tedious process of manual matching is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles and robots, and in particular to a new type of pan / tilt motor. Background Art

[0002] The pan-tilt motor uses the property of piezoelectric materials that they will deform when an input voltage is applied, allowing them to generate mechanical vibrations at ultrasonic frequencies. The friction-driven mechanism design allows the pan-tilt motor to perform rotational or linear motion like an electromagnetic motor.

[0003] The application with publication number CN215452686U discloses a pan-tilt motor and pan-tilt, the pan-tilt motor comprising: a stator assembly, a limiting boss being arranged on the stator assembly; a rotor assembly, the rotor assembly being engaged with the stator assembly, the rotor assembly being able to rotate coaxially relative to the stator assembly, a limiting member being detachably arranged on the rotor assembly, the rotation trajectory of the limiting member at least partially overlapping with the limiting boss; the limiting member and the limiting boss cooperating to limit the rotation angle of the rotor assembly. The pan-tilt motor provided in the present application has a limiting member detachably arranged on the rotor assembly, the limiting member and the limiting boss on the stator assembly cooperating to limit the rotation angle of the pan-tilt motor, and at the same time, during the process of calibrating the pan-tilt motor, only the limiting member needs to be removed, which is very convenient to operate.

[0004] The prior art achieves the limitation of the rotation angle of the gimbal motor by the cooperation between the detachable limiting part and the limiting boss, but the rotation of the gimbal motor is less than 360 degrees. When used on a drone, the gimbal cannot be rotated 180 degrees to look directly behind. The operation is cumbersome and requires manual cooperation. In addition, the assembly of the gimbal motor is usually connected by bolts, which is inconvenient. Therefore, a new gimbal motor is needed to meet people's needs. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of gimbal motor to solve the problem that the rotation of the gimbal motor mentioned in the above background technology is less than 360 degrees. When used on a drone, the gimbal cannot be rotated 180 degrees to look directly behind, the operation is cumbersome and requires manual coordination, and the assembly of the gimbal motor is usually connected by bolts, which makes the assembly inconvenient.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of pan-tilt motor, including a rotor and a stator, a shift block is arranged on a bottom end of the rotor housing, a steel ball groove is provided on the upper top surface of the stator housing, the steel ball groove is distributed in an arc shape, and the two ends are close to each other and not connected, a steel ball is adapted in the steel ball groove, a shift groove is provided between the two ends of the steel ball groove that are not connected, the two ends of the shift groove are respectively connected to the two ends of the steel ball groove, the width of the shift groove is smaller than the width of the steel ball groove, the shift block is adapted in the shift groove and the steel ball groove, the rotor An inner insert tube is arranged in the sub-shell, an outer insert tube is arranged on the stator shell, a spring is arranged in the bottom end of the stator shell, the spring extends upward into the outer insert tube, a first slide tube is arranged on the spring, a second slide tube is arranged on the bottom end of the first slide tube, the second slide tube part is located outside the bottom end of the stator shell, a plurality of balls are movably mounted on the inner wall of the outer insert tube, one end of each ball away from each other is in contact with the inner wall of the first slide tube, a trapezoidal annular groove is opened on the outer wall of the inner insert tube, and a plurality of the balls are located in the trapezoidal annular groove.

[0007] Preferably, a first annular groove is formed on the bottom end of the stator housing, and the second sliding tube is slidably fitted in the first annular groove.

[0008] Preferably, a second annular groove is provided above the first annular groove, the second annular groove extends upward into the outer insert tube, the width of the second annular groove is greater than that of the first annular groove, the first sliding tube is slidably fitted in the second annular groove, and one end of the spring is installed at the connection between the second annular groove and the first annular groove.

[0009] Preferably, an anti-slip groove is provided on the outer wall of the second sliding tube located outside the bottom end of the stator housing.

[0010] Preferably, a plurality of ball holes are provided between the second annular groove and the inner wall of the outer tube, and the balls are fitted in the ball holes. The hole diameter at one end of the ball hole close to the second annular groove is the same as the diameter of the ball, and the hole diameter at one end of the ball hole close to the inner wall of the outer tube is smaller than the diameter of the ball.

[0011] Preferably, a receiving groove is provided on the inner wall of the top end of the first sliding tube, and the inner diameter of the receiving groove is larger than the inner diameter of the first sliding tube.

[0012] Preferably, the outer diameter of the bottom end of the inner insert tube is smaller than the outer diameter of the inner insert tube at the trapezoidal annular groove portion, and increases gradually from bottom to top.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the rotor rotates to drive the shift block to rotate, and pushes the steel ball to rotate in the steel ball groove. After one rotation, the steel ball is limited by the steel ball groove, so that the shift block stops and the rotor is blocked. At this time, it can rotate one circle in the opposite direction. The overall rotation range is greater than 360 degrees, thereby cleverly solving the problem of 360-degree rotation without dead angles with a simple structure, and compared with the prior art, it avoids the cumbersome process of manual coordination.

[0015] In the utility model, by pulling the second slide tube, the first slide tube drives the spring to compress, and a plurality of balls lose the restriction of the first slide tube, forming a loosening trend, the inner insert tube is inserted from the outer insert tube, the second slide tube is loosened, the elastic force of the spring pushes the first slide tube upward, and the balls are limited, thereby forming an inward contraction trend and being clamped in the trapezoidal annular groove, thereby realizing the assembly between the stator and the rotor, ensuring the normal rotation of the rotor, and making the assembly between the rotor and the stator more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a new type of pan / tilt motor proposed in the utility model;

[0017] Figure 2 This is a front cross-sectional structural schematic diagram of a new type of pan / tilt motor proposed in the utility model;

[0018] Figure 3 This is a schematic diagram of the stator structure from a top view of a new type of pan / tilt motor proposed in the utility model;

[0019] Figure 4 This is a schematic diagram of the front cross-sectional structure of the stator of a new type of pan-tilt motor proposed in the utility model;

[0020] Figure 5 This is a schematic diagram of the rotor structure of a new type of pan / tilt motor proposed in the utility model when viewed from above;

[0021] Figure 6 This is a schematic diagram of the front cross-sectional structure of the rotor of a novel pan-tilt motor proposed in the utility model.

[0022] In the figure: 1. rotor; 2. stator; 3. shift block; 4. steel ball groove; 5. steel ball; 6. shift groove; 7. inner insert tube; 8. outer insert tube; 9. spring; 10. first slide tube; 11. second slide tube; 12. ball; 13. trapezoidal annular groove; 14. first annular groove; 15. second annular groove; 16. anti-slip groove; 17. ball hole; 18. storage groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-6 A new type of pan / tilt motor includes a rotor 1 and a stator 2. A shift block 3 is provided on a bottom end of a housing of the rotor 1. A steel ball groove 4 is provided on the upper top surface of the housing of the stator 2. The steel ball groove 4 is distributed in an arc shape, and the two ends are close to each other and are not connected. A steel ball 5 is adapted in the steel ball groove 4. A shift groove 6 is provided between the two ends of the steel ball groove 4 that are not connected. The two ends of the shift groove 6 are respectively connected to the two ends of the steel ball groove 4. The width of the shift groove 6 is smaller than the width of the steel ball groove 4. The shift block 3 is adapted in the shift groove 6 and the steel ball groove 4. An inner insert 7 is provided in the housing of the rotor 1. The housing of the stator 2 An outer plug tube 8 is provided on the outer wall of the outer plug tube 8, a spring 9 is provided in the bottom end of the stator 2 housing, the spring 9 extends upward into the outer plug tube 8, a first slide tube 10 is provided on the spring 9, a second slide tube 11 is provided on the bottom end of the first slide tube 10, and a part of the second slide tube 11 is located outside the bottom end of the stator 2 housing. A plurality of balls 12 are movably mounted on the inner wall of the outer plug tube 8, and one end of each ball 12 away from each other is in contact with the inner wall of the first slide tube 10. A trapezoidal annular groove 13 is provided on the outer wall of the inner plug tube 7, and a plurality of balls 12 are located in the trapezoidal annular groove 13.

[0025] By rotating the rotor 1, the shift block 3 is driven to rotate, and the steel ball 5 is pushed to rotate in the steel ball groove 4. After rotating one circle, the steel ball 5 is limited by the steel ball groove 4, so that the shift block 3 stops and the rotor 1 is blocked. At this time, it can rotate one circle in the opposite direction. The overall rotation range is greater than 360 degrees, so that the problem of 360-degree rotation without dead angle is cleverly solved by using a simple structure, and compared with the prior art, the cumbersome process of manual coordination is avoided. By pulling the second slide tube 11, the first slide tube 10 drives the spring 9 to be compressed, and a plurality of balls 12 lose the restriction of the first slide tube 10, forming a loosening trend, inserting the inner insert tube 7 from the outer insert tube 8, loosening the second slide tube 11, and the elastic force of the spring 9 pushes the first slide tube 10 upward, and the ball 12 is limited, thereby forming a tendency to retract inward, and is clamped in the trapezoidal annular groove 13, thereby realizing the assembly between the stator 2 and the rotor 1 while ensuring the normal rotation of the rotor 1, making the assembly between the rotor 1 and the stator 2 more convenient and quick.

[0026] Specifically, in this embodiment, a first annular groove 14 is provided on the bottom end of the housing of the stator 2 , and the second slide tube 11 is slidably fitted in the first annular groove 14 . The first annular groove 14 provides an effective space for the movement of the second slide tube 11 .

[0027] Specifically, in the present embodiment, a second annular groove 15 is provided above the first annular groove 14, and the second annular groove 15 extends upward into the outer insert tube 8. The width of the second annular groove 15 is greater than that of the first annular groove 14. The first slide tube 10 is slidably fitted in the second annular groove 15, and one end of the spring 9 is installed at the connection between the second annular groove 15 and the first annular groove 14. The second annular groove 15 provides an effective sliding space for the first slide tube 10, provides a force-bearing surface for the spring 9, and effectively prevents the first slide tube 10 and the second slide tube 11 from being separated from the stator 2 and the outer insert tube 8.

[0028] Specifically, in this embodiment, an anti-slip groove 16 is provided on the outer wall of the second slide tube 11 outside the bottom end of the stator 2 housing, and the anti-slip groove 16 prevents the second slide tube 11 from slipping when being pulled.

[0029] Specifically, in the present embodiment, a plurality of ball holes 17 are provided between the second annular groove 15 and the inner wall of the outer insert tube 8, and the ball 12 is fitted into the ball hole 17. The aperture of the end of the ball hole 17 close to the second annular groove 15 is the same as the diameter of the ball 12, and the aperture of the end of the ball hole 17 close to the inner wall of the outer insert tube 8 is smaller than the diameter of the ball 12. The end of the ball hole 17 close to the inner wall of the outer insert tube 8 effectively prevents the ball 12 from falling out of the outer insert tube 8, and the end of the ball hole 17 close to the second annular groove 15 ensures that the inner insert tube 8 is inserted into the outer insert tube 7, and when in contact with the ball 12, the ball 12 can smoothly expand and move outward.

[0030] Specifically, in the present embodiment, a receiving groove 18 is provided on the inner wall at the top end of the first slide tube 10. The inner diameter of the receiving groove 18 is larger than the inner diameter of the first slide tube 10. The receiving groove 18 provides space for the outward expansion movement of the ball 12, thereby reducing the moving distance of the first slide tube 10, and further reducing the distance and pulling force required when pulling the second slide tube 11, saving manpower.

[0031] Specifically, in the present embodiment, the outer diameter of the bottom end of the inner tube 7 is smaller than the outer diameter of the inner tube 7 at the trapezoidal annular groove 13, and increases gradually from bottom to top, which facilitates the insertion of the inner tube 7 into the outer tube 8. When the inclined outer wall of the inner tube 7 contacts the ball 12, the pulling force on the second slide tube 11 can be released, and the ball 12 expands outward through the inclined guide of the inclined surface, making the assembly between the rotor 1 and the stator 2 more convenient and labor-saving.

[0032] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A novel pan / tilt motor, comprising a rotor (1) and a stator (2), characterized in that: A shifting block (3) is arranged on a bottom end of the outer shell of the rotor (1), and a steel ball groove (4) is provided on the upper top surface of the outer shell of the stator (2). The steel ball groove (4) is distributed in an arc shape, and the two ends are close to each other and not connected. A steel ball (5) is adapted in the steel ball groove (4). A shifting groove (6) is arranged between the two ends of the steel ball groove (4) that are not connected. The two ends of the shifting groove (6) are respectively connected to the two ends of the steel ball groove (4). The width of the shifting groove (6) is smaller than the width of the steel ball groove (4). The shifting block (3) is adapted in the shifting groove (6) and the steel ball groove (4). An inner insert tube (7) is arranged in the outer shell of the rotor (1), and an outer insert tube is arranged on the outer shell of the stator (2). (8), a spring (9) is arranged inside the bottom end of the stator (2) housing, the spring (9) extends upward into the outer tube (8), a first slide tube (10) is arranged on the spring (9), a second slide tube (11) is arranged on the bottom end of the first slide tube (10), a portion of the second slide tube (11) is located outside the bottom end of the stator (2) housing, a plurality of balls (12) are movably mounted on the inner wall of the outer tube (8), an end of each ball (12) away from each other is in contact with the inner wall of the first slide tube (10), a trapezoidal annular groove (13) is opened on the outer wall of the inner tube (7), and a plurality of the balls (12) are located in the trapezoidal annular groove (13).

2. According to claim 1, the novel pan / tilt motor is characterized by: A first annular groove (14) is provided on the bottom end of the stator (2) housing, and the second sliding tube (11) is slidably fitted in the first annular groove (14).

3. The novel pan / tilt motor according to claim 2 is characterized in that: A second annular groove (15) is provided above the first annular groove (14). The second annular groove (15) extends upward into the outer insert tube (8). The width of the second annular groove (15) is greater than that of the first annular groove (14). The first sliding tube (10) is slidably fitted into the second annular groove (15). One end of the spring (9) is installed at the connection between the second annular groove (15) and the first annular groove (14).

4. The novel pan / tilt motor according to claim 1 is characterized in that: An anti-slip groove (16) is provided on the outer wall of the second sliding tube (11) located outside the bottom end of the stator (2) housing.

5. According to claim 3, the novel pan / tilt motor is characterized by: A plurality of ball holes (17) are provided between the second annular groove (15) and the inner wall of the outer insert tube (8), and the balls (12) are fitted into the ball holes (17). The diameter of the ball holes (17) at one end close to the second annular groove (15) is the same as the diameter of the balls (12), and the diameter of the ball holes (17) at one end close to the inner wall of the outer insert tube (8) is smaller than the diameter of the balls (12).

6. The novel pan / tilt motor according to claim 1 is characterized in that: A receiving groove (18) is provided on the inner wall of the top end of the first sliding tube (10), and the inner diameter of the receiving groove (18) is larger than the inner diameter of the first sliding tube (10).

7. The novel pan / tilt motor according to claim 1 is characterized by: The outer diameter of the bottom end of the inner insert tube (7) is smaller than the outer diameter of the inner insert tube (7) at the position of the trapezoidal annular groove (13), and gradually increases from bottom to top.

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