Integrated steering engine

Abstract

The utility model relates to the technical field of electric steering engines, in particular to an integrated steering engine which comprises a motor, a hollow working cabin and a processing cabin located on one side of the working cabin, a rotatable lead screw is arranged on the inner side of the working cabin, a nut is arranged on the outer side of the lead screw in a sleeved mode, and second protrusions are arranged at the top end and the bottom end of the nut respectively. And a rotatable output shaft is arranged on one side of the nut. The first protrusion where the conveying shifting fork is located drives the detection shifting fork to rotate, the angle sensor detects the rotation angle of the output shaft, the situation that the detection precision of the angle sensor is affected by vibration of the output shaft is avoided, and therefore the flight attitude and navigation precision of an aircraft are adjusted more accurately; the angle sensor and the output shaft are arranged in a non-coaxial mode, the two control surfaces can be controlled at the same time through the two ends of one output shaft, the action synchronism of the two control surfaces is ensured, errors generated by synchronous movement of multiple rudders are reduced, and the research and development requirements of aircrafts with limited space can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of electric steering gears, in particular to an integrated steering gear. Background Art

[0002] In the technical field of aircraft such as smart ammunition and drones, servos are mainly used to control the tilt angle of the nose and fuselage, adjust the heading and pitch angle of the aircraft, and realize the turning and lifting of the aircraft. The electric servo can achieve precise control of the flight state of the aircraft by accurately controlling the deflection angle of the rudder surface.

[0003] In the process of aircraft development, electric servos with coaxial output shafts and angle sensors are usually used. However, in some scenarios that require high precision, electric servos with coaxial output shafts and angle sensors may have interference and error problems. The rotation or vibration of the output shaft may be directly transmitted to the sensor, causing interference to the sensor readings and unnecessary errors. This may affect the attitude control, navigation accuracy, and target strike accuracy of the aircraft.

[0004] Therefore, it is necessary to invent an integrated steering gear to solve the above problems. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide an integrated servo, which solves the problem of interference and error that may exist in the electric servo whose output shaft is coaxial with the angle sensor during actual use. The rotation or vibration of the output shaft may be directly transmitted to the sensor, causing interference to the sensor reading and unnecessary errors. This may affect the attitude control, navigation accuracy and target strike accuracy of the aircraft.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] An integrated steering gear comprises a motor, a hollow working cabin and a processing cabin located on one side of the working cabin, a rotatable screw is arranged on the inner side of the working cabin, a nut which can slide back and forth is sleeved on the outer side of the screw, a second protrusion is arranged on the top and bottom ends of the nut, a rotatable output shaft is arranged on one side of the nut, a conveying fork which is engaged with the second protrusion is sleeved on the outer side wall of the output shaft, a first protrusion is arranged on one side end face of the conveying fork, a rotatable detection fork is arranged on the bottom end of the working cabin, the first protrusion is located in the groove where the detection fork is located, an angle sensor is arranged on the outer side of the working cabin at the bottom end of the detection fork, and the detection end of the angle sensor is inserted into the inside of the detection fork.

[0008] As a preferred solution of the utility model, a motor is installed at one end of the working cabin, the output end of the motor extends to the interior of the working cabin, the output end of the motor is connected to a driving gear, the driving gear is meshingly connected to a driven gear, and the driven gear is sleeved on the outside of the screw.

[0009] As a preferred solution of the utility model, a guide bearing is arranged on one side of the nut, and a slide groove for the guide bearing to slide is opened on one side of the working cabin.

[0010] As a preferred solution of the utility model, the output shaft penetrates and extends to the outside of the working cabin, and the outer wall of the output shaft located at the top and bottom of the working cabin is sleeved with ball bearings.

[0011] As a preferred solution of the utility model, a control circuit board is installed inside the processing chamber, and a socket for information transmission is provided on one side of the motor of the working chamber.

[0012] As a preferred solution of the utility model, both side end faces of the lead screw are provided with ball bearings installed inside the working cabin.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] In the utility model, the driving gear is driven by electricity to rotate at the same time, the driving gear is meshed with the driven gear to drive the lead screw to rotate, the nut set on the lead screw sleeve slides back and forth, and the second protrusions at the top and bottom ends of the nut simultaneously drive the conveying fork to rotate, and drive the output shaft to rotate. While the conveying fork is rotating, the first protrusion where the conveying fork is located drives the detection fork to rotate, and the angle sensor detects the rotation angle of the output shaft to avoid the angle sensor being affected by the vibration of the output shaft. The detection accuracy can be adjusted more accurately, thereby more accurately adjusting the flight attitude and navigation accuracy of the aircraft. The non-coaxial setting of the angle sensor and the output shaft can use both ends of the output shaft at the same time, and control two rudder surfaces at the same time through the two ends of one output shaft, ensuring the synchronization of the actions of the two rudder surfaces, reducing the errors caused by the synchronous movement of multiple rudders, and meeting the research and development needs of aircraft with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model after removing the working cabin;

[0018] Figure 4This is a schematic diagram of the screw structure of the utility model.

[0019] Explanation of the reference numerals: 1. Motor; 2. Working chamber; 3. Processing chamber; 4. Output shaft; 5. Angle sensor; 6. Control circuit board; 7. Driving gear; 8. Driven gear; 9. Lead screw; 10. Nut; 11. Conveying fork; 12. First protrusion; 13. Detection fork; 14. Second protrusion; 15. Guide bearing; 16. Slide groove. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0021] The utility model provides Figure 1-4 The integrated steering gear shown in the figure comprises a motor 1, a hollow working cabin 2 and a processing cabin 3 located on one side of the working cabin 2, a rotatable screw 9 is arranged on the inner side of the working cabin 2, a reciprocating slidable nut 10 is sleeved on the outer side of the screw 9, a second protrusion 14 is arranged on the top and bottom ends of the nut 10, a rotatable output shaft 4 is arranged on one side of the nut 10, a conveying fork 11 engaged with the second protrusion 14 is sleeved on the outer side wall of the output shaft 4, and a first protrusion 14 is arranged on one side end face of the conveying fork 11 2, a rotatable detection fork 13 is arranged at the bottom end of the working cabin 2, the first protrusion 12 is located in the groove where the detection fork 13 is located, and an angle sensor 5 is arranged at the bottom end of the detection fork 13 on the outside of the working cabin 2, and the detection end of the angle sensor 5 is inserted into the inside of the detection fork 13, and the detection fork 13 is driven to rotate by the conveying fork 11, so as to realize the angle detection of the angle sensor 5, and realize the function of angle detection when the output shaft 4 and the angle sensor 5 are not coaxial, which can meet the use requirements of related scenarios.

[0022] A motor 1 is installed at one end of the working cabin 2, and the output end of the motor 1 extends to the interior of the working cabin 2. The output end of the motor 1 is connected to a driving gear 7, and the driving gear 7 is meshingly connected to a driven gear 8. The driven gear 8 is sleeved on the outside of the lead screw 9, and the driven gear 8 is driven by the driving gear 7 to rotate, thereby realizing the rotation of the lead screw 9. The transmission of the lead screw 9 has high transmission accuracy and strong load capacity, and can withstand large loads, so as to provide sufficient supporting force in the use scenario of bearing large loads.

[0023] A guide bearing 15 is provided on one side of the nut 10, and a slide groove 16 for the guide bearing 15 to slide is provided on one side of the working cabin 2. The guide bearing 15 and the slide groove 16 are provided to constrain the sliding direction of the nut 10 to prevent the nut 10 from rotating during the sliding process, resulting in the inability to drive the conveying fork 11 to rotate and the inability to achieve force transmission.

[0024] The output shaft 4 passes through and extends to the outside of the working cabin 2. The outer wall of the output shaft 4 located at the top and bottom of the working cabin 2 is sleeved with ball bearings. The ball bearings on the outside of the output shaft 4 can enable the output shaft 4 to withstand greater bending resistance, so that the output shaft 4 can provide sufficient power during rapid rotation at a large angle.

[0025] A control circuit board 6 is installed inside the processing chamber 3, and a socket for information transmission is provided on one side of the working chamber 2 located at the motor 1. Through the setting of the processing chamber 3 and the internal control circuit board 6, the actuator and controller of the electric servo are integrated into one, so that the product has a higher degree of integration and can save more design space.

[0026] The two side end faces of the lead screw 9 are provided with ball bearings installed on the inner side of the working cabin 2. The arrangement of the ball bearings reduces the friction resistance required for the lead screw 9 to rotate, reduces the loss during the force transmission process, and ensures the output of the output shaft 4.

[0027] The utility model drives the driving gear 7 to rotate electrically at the same time, and the driving gear 7 is engaged with the driven gear 8 to drive the lead screw 9 to rotate. The nut 10 sleeved on the lead screw 9 slides back and forth, and the second protrusions 14 at the top and bottom ends of the nut 10 simultaneously drive the conveying fork 11 to rotate, and drive the output shaft 4 to rotate. When the conveying fork 11 rotates, the first protrusion 12 where the conveying fork 11 is located drives the detection fork to rotate, and the angle sensor 5 detects the rotation angle of the output shaft 4 to avoid the angle sensor 5 being affected by the vibration of the output shaft 4. The detection accuracy can be adjusted more accurately. The non-coaxial setting of the angle sensor 5 and the output shaft 4 can use the two ends of the output shaft 4 at the same time, and control the two rudder surfaces at the same time through the two ends of the output shaft 4, so as to ensure the synchronization of the actions of the two rudder surfaces, reduce the errors caused by the synchronous movement of multiple rudders, and meet the research and development needs of aircraft with limited space.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An integrated steering gear, characterized in that: The invention comprises a motor (1), a hollow working chamber (2) and a processing chamber (3) located on one side of the working chamber (2), wherein a rotatable lead screw (9) is arranged on the inner side of the working chamber (2), a reciprocating slidable screw nut (10) is sleeved on the outer side of the lead screw (9), a second protrusion (14) is arranged on the top and bottom ends of the screw nut (10), a rotatable output shaft (4) is arranged on one side of the screw nut (10), and an outer wall of the output shaft (4) is sleeved with a screw nut (14) which is in contact with the second protrusion. (14) a conveying fork (11) engaged with the conveying fork (11), a first protrusion (12) being arranged on one end face of the conveying fork (11), a rotatable detection fork (13) being arranged at the bottom end of the working chamber (2), the first protrusion (12) being located in a groove where the detection fork (13) is located, an angle sensor (5) being arranged at the bottom end of the detection fork (13) on the outer side of the working chamber (2), the detection end of the angle sensor (5) being inserted into the interior of the detection fork (13).

2. The integrated steering gear according to claim 1, characterized in that: A motor (1) is installed at one end of the working cabin (2), the output end of the motor (1) extends into the interior of the working cabin (2), the output end of the motor (1) is connected to a driving gear (7), the driving gear (7) is meshingly connected to a driven gear (8), and the driven gear (8) is sleeved on the outside of a lead screw (9).

3. The integrated steering gear according to claim 1, characterized in that: A guide bearing (15) is provided on one side of the nut (10), and a slide groove (16) for the guide bearing (15) to slide is provided on one side of the working cabin (2).

4. The integrated steering gear according to claim 1, characterized in that: The output shaft (4) penetrates through and extends to the outside of the working chamber (2), and the outer wall of the output shaft (4) located at the top and bottom of the working chamber (2) is sleeved with ball bearings.

5. The integrated steering gear according to claim 1, characterized in that: A control circuit board (6) is installed inside the processing chamber (3), and a socket for information transmission is provided on one side of the working chamber (2) located on the motor (1).

6. The integrated steering gear according to claim 1, characterized in that: The end faces on both sides of the lead screw (9) are provided with ball bearings installed inside the working cabin (2).

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