Steering engine bending moment and torque simultaneous loading equipment

Abstract

The invention discloses steering engine bending moment and torque simultaneous loading equipment which comprises a torque load unit, a radial driving unit and a mounting seat which are sequentially arranged on a base at intervals, the mounting seat is used for mounting a steering engine, a radial bearing is arranged at the driving end of the radial driving unit, and a coupler is rotationally connected into the radial bearing; one end of the coupler is connected with the torque load unit through the torque sensor, the other end of the coupler is connected with an output shaft of the steering engine, and the controller is connected with the steering engine, the torque sensor and the radial driving unit and used for controlling rotation of the steering engine and action of the radial driving unit. According to the steering engine bending moment and torque simultaneous loading equipment, the radial driving unit drives the radial bearing to radially move relative to the output shaft of the steering engine, so that the output shaft of the steering engine is subjected to bending force, and the torque loading unit can apply rotating torque force to the output shaft of the steering engine, so that the output shaft of the steering engine is subjected to twisting force; therefore, twisting and bending of the output shaft of the steering engine are carried out simultaneously, and the bearing capacity of the output shaft of the steering engine is tested.

Description

Technical Field

[0001] The invention belongs to the technical field of steering gear bending moment measurement, and more specifically, relates to a steering gear bending moment and torque simultaneous loading device. Background Art

[0002] The servo is a servo actuator on the aircraft. Its main function is to control the aircraft wing surface to overcome the bending moment and torque movement according to the control instructions. In order to test the performance of the servo, it is necessary to simulate the bending moment and torque of the aircraft during flight. Traditional loading equipment mainly simulates the torque of the aircraft during flight through electric cylinders or elastic structural parts, and cannot achieve simultaneous loading of bending moment and torque. At the same time, traditional servo loading equipment has a low degree of automation and a high risk factor.

[0003] Therefore, it is necessary to develop a servo bending moment combination automatic loading device to realize automatic loading of servo bending and torsion, simulate the wing surface movement during the flight of the aircraft, and realize accurate testing of the servo performance. Summary of the invention

[0004] The purpose of the present invention is to provide a device for simultaneously loading bending moment and torque of a servo in order to address the deficiencies in the prior art, so as to solve the problem that the existing traditional loading devices mainly simulate the torque of the aircraft during flight by means of electric cylinders or elastic structural parts, and cannot realize the simultaneous loading of bending moment and torque.

[0005] In order to achieve the above object, the present invention provides a device for simultaneously loading bending moment and torque of a steering gear, comprising:

[0006] A base, on which a torque load unit, a radial drive unit and a mounting seat are sequentially arranged at intervals, the mounting seat is used to install a steering gear, a driving end of the radial drive unit is provided with a radial bearing, a coupling is rotatably connected in the radial bearing, one end of the coupling is connected to the torque load unit through a torque sensor, and the other end of the coupling is connected to the output shaft of the steering gear;

[0007] A controller, the controller, the steering gear, the torque sensor and the radial drive unit are used to control the rotation of the steering gear and the action of the radial drive unit.

[0008] Optionally, the radial drive unit comprises:

[0009] An adjustable bracket, wherein the fixed end of the adjustable bracket is arranged on the base, the adjusting end of the adjustable bracket is provided with a thrust actuator, and the output end of the thrust actuator is connected to the radial bearing.

[0010] Optionally, the radial drive unit is vertically arranged to provide vertical movement displacement.

[0011] Optionally, the adjustable bracket is rectangular and comprises:

[0012] A connecting block, wherein the connecting block is arranged at the lower end of the substrate, and two ends of the connecting block are respectively exposed to the substrate;

[0013] Two adjusting rods, the adjusting rods are vertically arranged, and the two adjusting rods are vertically arranged at two ends of the connecting block respectively;

[0014] An adjusting block is connected to the upper ends of the two adjusting rods, and the thrust actuator is arranged on a side of the adjusting block close to the radial bearing.

[0015] Optionally, the torque load unit comprises:

[0016] A sliding seat, the sliding seat being slidably connected to the base;

[0017] A spring torsion bar, one end of which is connected to the coupling via the torque sensor, and the other end of which is passed through the fixing seat.

[0018] Optionally, the cross-section of the spring torsion bar is rectangular, and the fixing seat is provided with a limiting groove matching with the spring torsion bar.

[0019] Optionally, a support bearing is further provided on the base, and the support bearing is used to support and limit the radial displacement of the torque sensor and / or one end of the coupling close to the spring torsion bar.

[0020] Optionally, a connecting flange is provided at one end of the torque sensor, the coupling is connected to the torque sensor via the connecting flange, and a slot matching with the spring torsion bar is provided at the other end of the torque sensor.

[0021] Optionally, the base is provided with two spaced parallel grooves, and the sliding seat is connected to the parallel grooves via locking screws.

[0022] Optionally, during installation, the output shaft of the servo engine and the spring torsion bar are coaxial.

[0023] The present invention provides a device for simultaneously loading bending moment and torque of a steering gear, which has the following beneficial effects:

[0024] 1. The servo bending moment and torque simultaneous loading device drives the radial bearing to move radially relative to the output shaft of the servo through the radial drive unit, so that the output shaft of the servo is subjected to bending force. At the same time, the torque load unit can apply rotational torque to the output shaft of the servo, so that the output shaft of the servo is subjected to twisting force, thereby achieving the twisting and bending of the output shaft of the servo at the same time, and testing the load-bearing capacity of the output shaft of the servo.

[0025] 2. The servo bending moment and torque are automatically loaded at the same time, and the torque and bending moment are adjustable, which can simulate the application of bending moment and torque during the flight of the aircraft to fully test the product performance of the servo and improve product reliability.

[0026] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0028] Figure 1 A schematic structural diagram of a device for simultaneously loading bending moment and torque of a steering gear according to an embodiment of the present invention is shown.

[0029] Figure 2 A schematic structural diagram of a torque sensor for a steering gear bending moment and torque simultaneous loading device according to an embodiment of the present invention is shown.

[0030] Description of reference numerals:

[0031] 1. Spring torsion bar; 2. Sliding seat; 3. Torque sensor; 4. Controller; 5. Base; 6. Support bearing; 7. Coupling; 8. Thrust actuator; 9. Adjusting rod; 10. Connecting block; 11. Radial bearing; 12. Mounting seat; 13. Servo. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0033] like Figure 1-2 As shown, a device for simultaneously loading bending moment and torque of a steering gear comprises:

[0034] A base 5, on which a torque load unit, a radial drive unit and a mounting seat 12 are sequentially arranged at intervals, the mounting seat 12 is used to install a steering gear 13, a radial bearing 11 is arranged at the driving end of the radial drive unit, a coupling 7 is rotatably connected in the radial bearing 11, one end of the coupling 7 is connected to the torque load unit through the torque sensor 3, and the other end of the coupling 7 is connected to the output shaft of the steering gear 13;

[0035] The controller 4, the controller 4, the steering gear 13, the torque sensor 3 and the radial drive unit are used to control the rotation of the steering gear 13 and the action of the radial drive unit.

[0036] Specifically, the radial driving unit drives the radial bearing 11 to move radially relative to the output shaft of the steering gear 13, so that the output shaft of the steering gear 13 is subjected to a bending force. At the same time, the torque load unit can apply a rotational torque to the output shaft of the steering gear 13, so that the output shaft of the steering gear 13 is subjected to a twisting force, thereby achieving the twisting and bending of the output shaft of the steering gear 13 at the same time, so as to test the load-bearing capacity of the output shaft of the steering gear 13.

[0037] The torque load unit is of passive type, and the controller 4 controls the steering gear 13 to actively rotate while the torque load unit remains stable to apply the twisting load.

[0038] Furthermore, the coupling 7 is connected to the output shaft of the steering gear 13 through a keyway structure to ensure stable torque transmission and simulate the force on the end of the output shaft. The radial drive unit has a self-installed or external sensor to monitor the bending force and / or displacement.

[0039] In this embodiment, the radial drive unit includes:

[0040] The adjustable bracket has a fixed end disposed on a base 5 , and a thrust actuator 8 is disposed at the adjustable end of the adjustable bracket, and an output end of the thrust actuator 8 is connected to a radial bearing 11 .

[0041] Specifically, the thrust actuator 8 is fixed by an adjustable bracket to adapt to different bending degrees.

[0042] In this embodiment, the radial driving unit is vertically arranged to provide vertical movement displacement.

[0043] In this embodiment, the adjustable bracket is rectangular and includes:

[0044] A connecting block 10 is arranged at the lower end of the substrate, and two ends of the connecting block 10 are respectively exposed to the substrate;

[0045] Two adjusting rods 9, the adjusting rods 9 are vertically arranged, and the two adjusting rods 9 are vertically arranged at both ends of the connecting block 10 respectively;

[0046] The adjusting block is connected to the upper ends of the two adjusting rods 9 , and the thrust actuator 8 is arranged on a side of the adjusting block close to the radial bearing 11 .

[0047] Specifically, the position of the thrust actuator 8 is achieved by adjusting the height of the adjustment block on the adjustment rod 9 .

[0048] In this embodiment, the torque load unit includes:

[0049] A sliding seat 2, the sliding seat 2 is slidably connected to the base 5;

[0050] A spring torsion bar 1, one end of which is connected to a coupling 7 via a torque sensor 3, and the other end of which is passed through a fixed seat.

[0051] Specifically, the torsion length of the spring torsion bar 1 is adjusted by sliding the sliding seat 2 on the base 5, thereby providing torsion loads of different magnitudes.

[0052] In this embodiment, the cross section of the spring torsion bar 1 is rectangular, and a limiting groove matching with the spring torsion bar 1 is provided on the fixing seat.

[0053] Specifically, the limiting groove ensures that the spring torsion bar 1 can only move axially and cannot move rotationally.

[0054] In this embodiment, a support bearing 6 is further provided on the base 5 , and the support bearing 6 is used to support the radial displacement of the limit torque sensor 3 and / or the coupling 7 torque sensor 3 close to the spring torsion bar 1 .

[0055] Specifically, the support bearing 6 is used to prevent the output shaft of the steering gear 13 from bending due to connection with various components or due to its own weight, thereby affecting the calculation of the bending force.

[0056] In this embodiment, a connecting flange is provided at one end of the torque sensor 3 , and the coupling 7 is connected to the torque sensor 3 via the connecting flange. A slot matching the spring torsion bar 1 is provided at the other end of the torque sensor 3 .

[0057] Specifically, the card slot connection is simple and convenient.

[0058] In this embodiment, two spaced parallel grooves are provided on the base 5, and the sliding seat 2 is connected to the parallel grooves via locking screws.

[0059] Specifically, the displacement trajectory of the sliding seat 2 is limited by two parallel grooves, and the sliding seat 2 is stopped at any position of the parallel grooves by locking screws, thereby realizing stepless torque adjustment.

[0060] In this embodiment, during installation, the output shaft of the steering gear 13 and the spring torsion bar 1 are coaxial.

[0061] Specifically, the output shaft of the initial servo 13 and the spring torsion bar 1 are tested, and a compensating connection is made through the coupling 7 after a bending force is applied.

[0062] In this embodiment, when a servo bending moment and torque are simultaneously loaded on a device, a servo 13 of a drone is used as an example:

[0063] The servo 13 is connected and installed, and the position of the sliding seat 2 is adjusted to select a suitable torque load. Then, the servo 13 is controlled to rotate the output shaft of the servo 13 and / or the radial drive unit is controlled to apply a bending force to the output shaft of the servo 13 to meet the need of applying torque and bending moment at the same time.

[0064] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A device for simultaneously loading bending moment and torque of a steering gear, characterized in that: include: A base, on which a torque load unit, a radial drive unit and a mounting seat are sequentially arranged at intervals, the mounting seat is used to install a steering gear, a driving end of the radial drive unit is provided with a radial bearing, a coupling is rotatably connected in the radial bearing, one end of the coupling is connected to the torque load unit through a torque sensor, and the other end of the coupling is connected to the output shaft of the steering gear; A controller, the controller, the steering gear, the torque sensor and the radial drive unit are used to control the rotation of the steering gear and the action of the radial drive unit.

2. The device for simultaneously loading bending moment and torque of a steering gear according to claim 1, characterized in that: The radial drive unit comprises: An adjustable bracket, wherein the fixed end of the adjustable bracket is arranged on the base, the adjusting end of the adjustable bracket is provided with a thrust actuator, and the output end of the thrust actuator is connected to the radial bearing.

3. The device for simultaneously loading bending moment and torque of a steering gear according to claim 2, characterized in that: The radial drive unit is vertically arranged to provide vertical movement displacement.

4. The device for simultaneously loading bending moment and torque of a steering gear according to claim 3, characterized in that: The adjustable bracket is rectangular and comprises: A connecting block, wherein the connecting block is arranged at the lower end of the substrate, and two ends of the connecting block are respectively exposed to the substrate; Two adjusting rods, the adjusting rods are vertically arranged, and the two adjusting rods are vertically arranged at two ends of the connecting block respectively; An adjusting block is connected to the upper ends of the two adjusting rods, and the thrust actuator is arranged on a side of the adjusting block close to the radial bearing.

5. The device for simultaneously loading bending moment and torque of a steering gear according to claim 1, characterized in that: The torque load unit comprises: A sliding seat, the sliding seat being slidably connected to the base; A spring torsion bar, one end of which is connected to the coupling via the torque sensor, and the other end of which is passed through the fixing seat.

6. The device for simultaneously loading bending moment and torque of a steering gear according to claim 5, characterized in that: The cross section of the spring torsion bar is rectangular, and the fixing seat is provided with a limiting groove matched with the spring torsion bar.

7. The device for simultaneously loading bending moment and torque of a steering gear according to claim 5, characterized in that: A support bearing is also provided on the base, and the support bearing is used to support and limit the radial displacement of the torque sensor and / or one end of the coupling close to the spring torsion bar.

8. The device for simultaneously loading bending moment and torque of a steering gear according to claim 5, characterized in that: A connecting flange is arranged at one end of the torque sensor, and the coupling is connected to the torque sensor via the connecting flange. A slot matching with the spring torsion bar is arranged at the other end of the torque sensor.

9. The device for simultaneously loading bending moment and torque of a steering gear according to claim 5, characterized in that: The base is provided with two spaced parallel grooves, and the sliding seat is connected to the parallel grooves via locking screws.

10. The device for simultaneously loading bending moment and torque of a steering gear according to claim 5, characterized in that: During installation, the output shaft of the servo is coaxial with the spring torsion bar.

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