Linear output control structure of steering engine

Abstract

The utility model discloses a steering engine linear output control structure which comprises a main shaft, the main shaft is connected with a main shaft seat through a bearing, the main shaft is further connected with a cross plate through a bearing, the side face of the main shaft seat is connected with three sets of steering engines and sliding assemblies which are arranged in a one-to-one correspondence mode, and the output ends of the steering engines are connected with driving gears. A rack is fixed to the sliding assembly and meshed with the driving gear, a first rack ball cup is further fixed to the surface of the rack, a pull rod is connected to the first rack ball cup, and the other end of the pull rod is connected to the side face of the cross disc through a ball connecting rod. The steering engine controls the rotation of the driving gear to enable the rack to move up and down, drive the pull rod to move up and down, enable the cross plate to deflect, control the flight direction of the unmanned aerial vehicle, enable the pull rod to only bear vertical force, improve the deflection accuracy of the cross plate, and further enable the flight control of the unmanned aerial vehicle to be more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a steering gear linear output control structure. Background Art

[0002] Currently, drones with vertical take-off and landing and air hovering capabilities are classified according to their control methods, mainly into helicopter type and multi-rotor type. The former has a complex mechanical structure, and flight control and personnel operation are difficult and costly; the latter has low flight efficiency and occupies a larger space.

[0003] Existing helicopter-type UAVs generally control the flight direction of the UAV by moving a cross-plate, such as a UAV cross-plate mechanism and a UAV provided in patent CN112319798A. In this patent, the up and down movement of the first connecting rod 311 is controlled by the rotation of the first rocker arm 312 on the servo. The rotation of the first rocker arm 312 will cause the first connecting rod 311 to deflect left and right in addition to the up and down movement, affecting the accuracy of the cross-plate direction control. Therefore, the servo linear output control structure is designed to make the flight control of the UAV more accurate. Utility Model Content

[0004] The purpose of the utility model is to provide a servo linear output control structure, which controls the rotation of a driving gear through the servo, and the driving gear drives the rack to move up and down, driving the pull rod to move up and down, causing the cross plate to deflect, thereby controlling the flight direction of the UAV. This structure causes the pull rod to be subjected to only vertical force, thereby improving the accuracy of the cross plate deflection, and further making the UAV flight control more accurate.

[0005] The utility model provides the following technical solutions: a servo linear output control structure, comprising a main shaft, the main shaft is connected to a main shaft seat through a bearing, the main shaft is also connected to a cross plate with a bearing, the cross plate is located above the main shaft seat, the side of the main shaft seat is connected to three groups of servos and sliding components arranged in a one-to-one correspondence, the output end of the servo is connected to a driving gear, the sliding component is fixed with a rack, the rack is meshed with the driving gear, a first rack ball head seat is also fixed on the surface of the rack, the first rack ball head seat is connected to a pull rod, and the other end of the pull rod is connected to the side of the cross plate through a ball head connecting rod.

[0006] In order to prevent the three steering gears from interfering with each other, two steering gear seats are symmetrically connected to the two side surfaces of the upper end of the main shaft seat, and a guide rail seat is connected to the other side surface. The three steering gears are connected to the two steering gear seats and the guide rail seat in sequence.

[0007] In order to fix the guide rail seat on the side of the spindle seat, two symmetrically distributed first clamps and second clamps are formed on the guide rail seat, and connecting holes are provided on the sides of the first clamps and the second clamps. An embedding groove is also provided on the upper end side of the spindle seat, and through holes are provided on the inner walls on both sides of the embedding groove. The first clamp and the second clamp are fixed to the inner walls on both sides of the embedding groove by fasteners passing through the through holes and the connecting holes.

[0008] In order to make the pull rod evenly distributed on the outer side of the cross plate, a groove is opened on the inner surface of the second clamp, the sliding assembly is arranged in the groove, the rack is also fixed on the surface of the sliding assembly, and a second rack ball head seat is also fixed on the rack. One end of the pull rod is connected to the second rack ball head seat, and the other end is connected to the outer side of the cross plate.

[0009] In order to control the direction and position of the servos and avoid interference between the servos, a servo seat is fixed to the upper end side of the main shaft seat, and the servo seat includes a bottom plate and a side plate, and there is an angle between the bottom plate and the side plate. The bottom plate is connected to the main shaft seat, and the servos are fixed to the side plates. A guide rail fixing block is connected to the bottom plate, and the guide rail fixing block is located outside the angle.

[0010] A guide rail fixing block is also connected between the sliding assembly and the servo seat. The sliding assembly includes a sliding block fixed on the guide rail fixing block. A guide rail slides inside the sliding block, and the guide rail is connected to the rack.

[0011] In order to limit the position of the spindle seat, two spindle rings are sleeved on the spindle, and the two spindle rings are respectively located at the upper end and the lower end of the spindle seat.

[0012] In order to enhance the connection strength between the servo and the servo seat, a servo carbon sheet is further connected to the other side of the surface of the servo connected to the servo seat, and the servo is connected between the servo carbon sheet and the side plate of the servo seat.

[0013] Compared with the prior art, the beneficial effect achieved by the utility model is: by setting a driving gear and a rack and utilizing the meshing of the two, the driving gear can drive the rack to move up and down, and further make the pull rod move vertically up and down, thereby reducing the deviation of the pull rod, improving the steering accuracy of the cross plate, and further improving the controllability of the drone and the accuracy of its movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the overall structure of the utility model from another perspective;

[0017] Figure 3 It is another three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 4 It is the installation position diagram of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the servo seat of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the guide rail seat of the utility model;

[0021] In the figure: 1, main shaft; 2, upper plate; 3, lower plate; 4, ball head connecting rod; 5, pull rod; 6, main shaft seat; 61, embedded groove; 7, main shaft ring; 8, servo seat; 81, bottom plate; 82, side plate; 9, servo; 10, servo carbon sheet; 11, driving gear; 12, slider; 13, guide rail; 14, first rack ball head seat; 15, guide rail seat; 151, first clamping jaw; 152, second clamping jaw; 153, connecting hole; 154, groove; 16, rack; 17, guide rail fixing block; 18, second rack ball head seat; 19, side plate. DETAILED DESCRIPTION

[0022] 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. Example

[0023] See also Figures 1 to 3The utility model provides a technical solution: a servo linear output control structure, including a main shaft 1, a main shaft seat 6 is connected to the main shaft 1 through a bearing, the rotation of the main shaft 1 controls the rotation of the propeller, the main shaft seat 6 is non-rotating, and a cross plate is also connected to the main shaft 1 with a bearing, the cross plate is located above the main shaft seat 6, the cross plate includes an upper plate 2 and a lower plate 3, the upper plate 2 is connected to the main shaft 1 through a fisheye bearing, and three groups of servos 9 and sliding assemblies arranged in a one-to-one correspondence are connected to the side of the main shaft seat 6, and a driving gear 11 is connected to the output end of the servo 9. In this embodiment, the driving gear 11 is a fan-shaped gear, and can also be a circular gear. A rack 16 is fixed to the sliding assembly, and the rack 16 moves up and down along the sliding assembly. The rack 16 is meshed with the driving gear 11, and a first rack ball head is also fixed on the surface of the rack 16 The first rack ball head seat 14 is connected with a pull rod 5, the first rack ball head seat 14 adjusts the position of the pull rod 5 so that the pull rod 5 is connected to the outer side of the lower plate 3, and the other end of the pull rod 5 is connected to the side of the lower plate 3 through the ball head connecting rod 4. The operation of the servo 9 controls the driving gear 11 to rotate, and further drives the rack 16 to move up and down. The up and down movement of the rack 16 will cause the first rack ball head seat 14 to move, and then push the pull rod 5 to move, so that the lower plate 3 will deviate up and down, changing the flight direction of the helicopter-type UAV. In the existing rocker arm connecting rod structure, the connecting rod is a non-linear motion. In the technical solution, this structure enables the pull rod 5 to move only in the up and down direction, and will not cause deflection to the pull rod 5, so that the movement of the lower plate 3 is more precise, and further makes the movement of the UAV during flight more precise.

[0024] like Figure 2 As shown, two servo seats 8 are connected to both side surfaces of the upper end of the spindle seat 6, and a guide rail seat 15 is connected to the other side surface. Three servo seats 9 are connected to the two servo seats 8 and the guide rail seat 15 in sequence. The two servo seats 8 are symmetrically connected to both side surfaces of the spindle seat 6, and the guide rail seat 15 is connected to the outside of the spindle seat 6 and is located between the two servo seats 8, so that the servo 9 on the guide rail seat 15 is away from the other two servo seats 9 to avoid interference between the servo seats 9.

[0025] like Figure 1 and 6 As shown, two symmetrically distributed first clamping jaws 151 and second clamping jaws 152 are formed on the guide rail seat 15, and connecting holes 153 are opened on the sides of the first clamping jaw 151 and the second clamping jaw 152. The connecting hole 153 is connected to the upper end of the spindle seat 6 through a fastener. The upper end side of the spindle seat 6 is opened with an inward-recessed groove 61, and the first clamping jaw 151 and the second clamping jaw 152 are embedded in the groove 61 at the same time. Through holes are also opened on the inner walls on both sides of the groove 61, and the first clamping jaw and the second clamping jaw are respectively connected to the inner walls on both sides of the groove 61 by inserting fasteners through the connecting hole 153 and the through holes.

[0026] like Figure 4 and6 As shown, a groove 154 is provided on the inner surface of the second clamp 152, and the sliding assembly is arranged in the groove 154. Side plates 19 are connected to both sides of the guide rail seat 15, and the sliding assembly is fixed on the inner wall of the side plate 19. The rack 16 is also fixed on the surface of the sliding assembly. A second rack ball head seat 18 is also fixed on the rack 16. One end of the pull rod 5 is connected to the second rack ball head seat 18, and the other end is connected to the outer side of the lower plate 3. The position of the pull rod 5 is controlled by the second rack ball head seat 18, so that the pull rod 5 is located on the outer side of the lower plate 3, and can just be mounted on the ball head connecting rod 4 connected to the lower plate 3.

[0027] like Figure 5 As shown, a servo base 8 is fixed to the side of the upper end of the spindle base 6, and the servo base 8 includes a bottom plate 81 and a side plate 82, which are distributed at an angle. The bottom plate 81 is connected to the spindle base 6, and the servo 9 is fixed on the side plate 82. A guide rail fixing block 17 is connected to the bottom plate 81, and the guide rail fixing block 17 is located on the outside of the angle. The direction and position of the servo 9 are adjusted through the side plate 82 to avoid interference between multiple servos 9.

[0028] like Figure 3 As shown, a guide rail fixing block 17 is also connected between the sliding assembly and the servo seat 8. The sliding assembly includes a slider 12 fixed on the guide rail fixing block 17. A guide rail 13 slides inside the slider 12. The guide rail 13 is connected to the rack 16 through fasteners. The sliding of the guide rail 13 is used to control the up and down movement of the rack 16, further controlling the rise and fall of the pull rod 5 and the deflection direction of the cross plate.

[0029] Two spindle rings 7 are also sleeved on the spindle 1. The two spindle rings 7 are respectively located at the upper and lower ends of the spindle seat 6. The spindle ring 7 is a circular ring that is broken in the middle. The two ends of the spindle ring 7 are connected by fasteners and locked on the spindle 1 to position the spindle seat 6.

[0030] A servo carbon sheet 10 is also connected to the other side of the surface of the servo 9 connected to the servo seat 8. The servo 9 is connected between the servo carbon sheet 10 and the side plate 82 of the servo seat 8, and the three are connected by fasteners. The servo carbon sheet 10 is light in weight and can increase the contact area with the servo 9, thereby improving the connection strength between the servo 9 and the servo seat 8.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A steering gear linear output control structure, comprising a main shaft, the main shaft is connected to a main shaft seat through a bearing, the main shaft is also connected to a cross plate with a bearing, the cross plate is located above the main shaft seat, and is characterized in that: The side of the main shaft seat is connected to three groups of servos and sliding components arranged in a one-to-one relationship. The output end of the servo is connected to a driving gear. A rack is fixed to the sliding component. The rack is meshed with the driving gear. A first rack ball head seat is also fixed on the surface of the rack. The first rack ball head seat is connected to a pull rod. The other end of the pull rod is connected to the side of the cross plate through a ball head connecting rod.

2. The steering gear linear output control structure according to claim 1, characterized in that: Two servo seats are symmetrically connected to both side surfaces of the upper end of the main shaft seat, and a guide rail seat is connected to the other side surface. Three servos are sequentially connected to the two servo seats and the guide rail seat.

3. The steering gear linear output control structure according to claim 2, characterized in that: The guide rail seat is formed with two symmetrically distributed first clamping jaws and a second clamping jaw, and the side surfaces of the first clamping jaw and the second clamping jaw are provided with connecting holes. The upper end side surface of the spindle seat is also provided with an embedding groove, and the inner walls on both sides of the embedding groove are provided with through holes. The first clamping jaw and the second clamping jaw are fixed to the inner walls on both sides of the embedding groove by fasteners passing through the through holes and the connecting holes.

4. The steering gear linear output control structure according to claim 3, characterized in that: A groove is provided on the inner surface of the second clamp, the sliding assembly is arranged in the groove, the rack is also fixed on the surface of the sliding assembly, a second rack ball head seat is also fixed on the rack, one end of the pull rod is connected to the second rack ball head seat, and the other end is connected to the outside of the cross plate.

5. The steering gear linear output control structure according to claim 2, characterized in that: A servo seat is fixed on the upper end side of the main shaft seat, and the servo seat includes a bottom plate and a side plate, and the bottom plate and the side plate are distributed at an angle. The bottom plate is connected to the main shaft seat, and the servo is fixed on the side plate. A guide rail fixing block is connected to the bottom plate, and the guide rail fixing block is located outside the angle.

6. The steering gear linear output control structure according to claim 2, characterized in that: A guide rail fixing block is also connected between the sliding assembly and the servo seat. The sliding assembly includes a sliding block fixed on the guide rail fixing block. A guide rail slides inside the sliding block, and the guide rail is connected to the rack.

7. The steering gear linear output control structure according to claim 1, characterized in that: The main shaft is also sleeved with two main shaft rings, which are respectively located at the upper end and the lower end of the main shaft seat.

8. The steering gear linear output control structure according to claim 1, characterized in that: A steering gear carbon sheet is also connected to the other side of the surface of the steering gear connected to the steering gear seat, and the steering gear is connected between the steering gear carbon sheet and the side plate of the steering gear seat.

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