Auxiliary tool for checking deflection angle of aircraft steering column

Abstract

The utility model discloses an auxiliary tool for checking the deflection angle of an aircraft steering column. The auxiliary tool comprises a steering column fixing assembly, an angle measuring assembly and a connecting rod assembly. The steering column fixing assembly is clamped outside the steering column; the angle measuring assembly comprises a fixed box and a digital display angle box; the digital display angle box is arranged in the fixed box; the connecting rod assembly is connected between the steering column fixing assembly and the fixing box. The end, away from the connecting rod assembly, of the fixing box is open. The auxiliary tool provided by the utility model is high in measurement precision of the deflection angle of the steering column.

Description

Technical Field

[0001] This utility model relates to the field of aviation technology, and more specifically to an auxiliary tooling for checking the deflection angle of an aircraft control stick. Background Technology

[0002] Checking the deflection angle of an aircraft control stick is a crucial task, directly impacting the performance of the control system and flight safety. Traditional methods for measuring control stick angle primarily utilize a gravity pendulum pointer combined with an angle scale. Specifically, the angle scale deflects with the control stick, and the deflection angle between the gravity pendulum pointer and the angle scale is used to check the control stick's deflection angle. However, this method has the following significant drawbacks:

[0003] 1. There is a certain mechanical friction at the hinge between the gravity pendulum pointer and the angle scale. This friction will cause deviation in the measurement results, thus affecting the accuracy of the measurement.

[0004] 2. The smallest division of the scale is usually 1°, which is a low level of precision for modern aircraft maintenance and cannot meet the requirements of high-precision measurement.

[0005] 3. There is a certain distance between the pointer and the angle scale. When the operator's line of sight is not perpendicular to the scale, reading errors are likely to occur.

[0006] In summary, existing methods for measuring control stick deflection angles have many shortcomings in terms of accuracy, reliability, and ease of operation. There is an urgent need for a new measuring tool that can overcome these shortcomings in order to improve the efficiency and quality of aircraft maintenance and debugging operations.

[0007] Therefore, developing an auxiliary tooling for checking the deflection angle of an aircraft control stick with high measurement accuracy is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] In view of this, the present invention provides an auxiliary tooling for checking the deflection angle of an aircraft control stick with high measurement accuracy.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] An auxiliary tooling for checking the deflection angle of an aircraft control stick includes:

[0011] A control stick fixing assembly, wherein the control stick fixing assembly is snapped onto the outside of the control stick;

[0012] An angle measuring component, comprising: a fixed box and a digital display angle box; the digital display angle box is disposed within the fixed box;

[0013] A linkage assembly is provided, which connects the control stick fixing assembly and the fixing box, wherein the end of the fixing box away from the linkage assembly is open.

[0014] The beneficial effects of adopting the above technical solution are that, in this utility model, a digital display angle box replaces the traditional gravity pendulum pointer and angle scale, which can achieve more accurate measurement of the control stick deflection angle, with an accuracy of up to 0.2°, significantly improving the accuracy of the measurement; the overall structure consists of a control stick fixing component, an angle measuring component, and a connecting rod component, which is easy to operate and use, and can quickly complete the detection of the control stick deflection angle.

[0015] Preferably, the control stick fixing assembly includes a fixing bracket and a clamp, the fixing bracket being connected to the clamp, and the control stick being positioned between the fixing bracket and the clamp. The control stick fixing assembly, with its fixing bracket and clamp structure, securely positions the control stick between the fixing bracket and the clamp, ensuring that the control stick will not loosen or shift during measurement, thereby guaranteeing the reliability of the measurement results.

[0016] Preferably, the end of the clamp connected to the fixed bracket is provided with a screw, which passes through the fixed bracket and is fastened with a wing nut. This fastening method can provide sufficient clamping force to ensure that the control stick is firmly fixed during measurement and prevent measurement errors caused by the control stick loosening; the design of the wing nut makes the tightening and loosening operations more convenient and quick, and can be completed manually without the use of tools.

[0017] Preferably, the fixing box is made of magnetic material, and the digital angle box is adsorbed onto the inner wall of the fixing box. This magnetic connection method makes the installation and fixing of the digital angle box more convenient and quick, eliminating the need for complex mechanical fixing structures and improving assembly efficiency.

[0018] Preferably, the external connection of the fixing box is a locking screw, which is threaded to the side wall of the fixing box and penetrates through the side wall of the fixing box to abut against the digital angle box. The locking screw's tightening method further enhances the fixing effect of the digital angle box on top of the magnetic attraction, making it more securely installed in the fixing box and preventing the digital angle box from loosening or shifting due to vibration or improper operation.

[0019] Preferably, the linkage assembly includes: a rod body, a knob, and a screw; the rod body is divided into a first half rod body and a second half rod body along its axial direction, and the first half rod body and the second half rod body are interlocked; the screw passes through the first half rod body and the second half rod body and is connected to the knob.

[0020] Preferably, the clamp and fixing box are each provided with a ball head at the end connected to the rod body, and both ends of the first half-rod and the second half-rod are provided with hemispherical grooves. After the first half-rod and the second half-rod are fastened together, the two hemispherical grooves lock the ball head in place. This ball head and hemispherical groove matching structure allows both the control stick fixing assembly and the angle measuring assembly to rotate in multiple directions around the center of the ball head, thereby enabling the measurement of the deflection angle of the control stick in different directions, greatly improving the applicability and measurement flexibility of the tooling.

[0021] Preferably, a washer is provided at the contact point between the knob and the second half of the rod. The washer can serve as a buffer and protector, reducing friction and wear between the knob and the first half of the rod.

[0022] Preferably, springs are provided in the inner cavities of the first and second half-rods, and the springs are sleeved on the outside of the screw. The function of the springs is to increase the preload of the threaded connection, prevent the knob from loosening due to vibration or other external forces, thereby ensuring the fastening effect of the connecting rod assembly and ensuring the stability of the measurement process.

[0023] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an auxiliary tooling for checking the deflection angle of an aircraft control stick, the beneficial effects of which are:

[0024] (1) This utility model uses a digital display angle box to replace the traditional gravity pendulum pointer and angle scale, and the measurement accuracy can reach 0.2°, effectively avoiding manual reading error and mechanical friction error, and meeting the needs of modern aviation maintenance for high-precision measurement;

[0025] (2) Through the cooperation of the ball head and the hemispherical groove, and the split design of the connecting rod assembly, the multi-directional flexible rotation of the control stick fixing assembly and the angle measuring assembly is realized, which can measure the control stick deflection angle in any direction, greatly improving the applicability of the tooling.

[0026] (3) The control stick fixing assembly adopts a structure of fixed bracket and clamp, and is fastened by screw and wing nut, making installation and adjustment simple and quick. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 The attached figure is a schematic diagram of the auxiliary tooling provided by this utility model;

[0029] Figure 2 The attached figure is an exploded view of the auxiliary tooling provided by this utility model.

[0030] In the figure,

[0031] 1- Control stick mounting assembly;

[0032] 11-Fixed bracket; 12-Clamp; 13-Wing nut;

[0033] 2-Angle measuring components;

[0034] 21-Fixing box; 22-Stabilizing screw;

[0035] 3-Linkage assembly;

[0036] 31-Knob; 32-Screw; 33-First half of the rod; 34-Second half of the rod; 35-Hemispherical groove; 36-Washer; 37-Spring;

[0037] 4-Ball head. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] This utility model embodiment discloses an auxiliary tooling for checking the deflection angle of an aircraft control stick, comprising:

[0040] Control stick fixing assembly 1, the control stick fixing assembly 1 is snapped onto the outside of the control stick;

[0041] Angle measuring component 2 includes: a fixed box 21 and a digital angle box; the digital angle box is disposed inside the fixed box 21.

[0042] Linkage assembly 3 connects the control stick fixing assembly 1 and the fixing box 21. The end of the fixing box 21 away from the linkage assembly 3 is open. The control stick is fixed in the clamp 12. When the control stick deflects at a certain angle, the control stick fixing assembly 1, linkage assembly 3 and angle measuring assembly 2 deflect simultaneously with the control stick, and the deflection angle is measured by the digital angle display box.

[0043] To further optimize the above technical solution, the control stick fixing assembly 1 includes: a fixing bracket 11 and a clamp 12, the fixing bracket 11 and the clamp 12 are connected, and the control stick is placed between the fixing bracket 11 and the clamp 12.

[0044] To further optimize the above technical solution, a screw is provided at one end of the clamp 12 that is connected to the fixed bracket 11. The screw passes through the fixed bracket 11 and is fastened with a wing nut 13.

[0045] To further optimize the above technical solution, the fixing box 21 is made of magnetic material, and the digital angle display box is adsorbed onto the inner wall of the fixing box 21. Under the combined action of the magnetic attraction of the fixing box 21 and the tightening of the locking screw 22, the magnetically attached digital angle display box can be fixed inside the fixing box 21. When the auxiliary fixture is installed on the control stick, both the control stick fixing assembly 1 and the angle measuring assembly 2 can rotate around the center of their ball head 4, which can conveniently and quickly realize the measurement of the control stick deflection angle in different directions.

[0046] To further optimize the above technical solution, the external connection of the fixing box 21 is a stop screw 22, which is threaded to the side wall of the fixing box 21 and passes through the side wall of the fixing box 21 to press against the digital angle box.

[0047] To further optimize the above technical solution, the linkage assembly 3 includes: a rod body, a knob 31, and a screw 32; the rod body is divided into a first half-rod body 33 and a second half-rod body 34 along its axial direction, and the first half-rod body 33 and the second half-rod body 34 are interlocked; the screw 32 passes through the first half-rod body 33 and the second half-rod body 34 and connects to the knob 31. After loosening the knob 31, the clamp 12 and the ball head 4 of the fixing box 21 can rotate in the two interlocking hemispherical grooves 35 of the linkage assembly 3, which can quickly adjust the angle of the digital angle box and measure the deflection angle of the control stick in different directions.

[0048] To further optimize the above technical solution, the clamp 12, the fixing box 21 and the rod body are each provided with a ball head 4 at the end of their connection. The first half rod 33 and the second half rod 34 are each provided with a hemispherical groove 35 at both ends. After the first half rod 33 and the second half rod 34 are fastened together, the two hemispherical grooves 35 clamp the ball head 4.

[0049] To further optimize the above technical solution, the ball head 4 on the clamp 12 is connected to the clamp 12, and the two are integrated; the ball head 4 on the fixing box 21 is connected to the fixing box 21, and the two are integrated.

[0050] To further optimize the above technical solution, a washer 36 is provided at the contact point between the knob 31 and the second half rod 34.

[0051] To further optimize the above technical solution, a spring 37 is provided in the inner cavity of the first half rod 33 and the second half rod 34, and the spring 37 is sleeved on the outside of the screw 32.

[0052] To further optimize the above technical solution, a threaded hole is formed on the knob 31. When the knob 31 is tightened, the first half-rod 33 and the second half-rod 34 are pressed together, thereby limiting the relative rotation of the angle measuring component 2 and the control stick fixing component 1. The function of the spring 37 is to increase the preload of the threaded connection and compensate for possible loosening due to vibration, preventing the knob 31 from loosening. The spring 37 is installed in the cylindrical holes of the first half-rod 33 and the second half-rod 34, and the two ends of the spring 37 respectively abut against the steps of the cylindrical holes of the first half-rod 33 and the second half-rod 34. When the knob 37 is tightened, the spring 37 can generate an axial force that separates the first half-rod 33 and the second half-rod 34, thus playing a role in preventing loosening.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary tooling for checking the deflection angle of an aircraft control stick, characterized in that, include: A control stick fixing assembly, wherein the control stick fixing assembly is snapped onto the outside of the control stick; An angle measuring component, comprising: a fixed box and a digital display angle box; the digital display angle box is disposed within the fixed box; A linkage assembly is provided, which connects the control stick fixing assembly and the fixing box, wherein the end of the fixing box away from the linkage assembly is open.

2. The auxiliary tooling for checking the deflection angle of an aircraft control stick according to claim 1, characterized in that, The control stick fixing assembly includes a fixing bracket and a clamp, wherein the fixing bracket is connected to the clamp, and the control stick is positioned between the fixing bracket and the clamp.

3. The auxiliary tooling for checking the deflection angle of an aircraft control stick according to claim 2, characterized in that, The end of the clamp that connects to the fixed bracket is provided with a screw rod, which passes through the fixed bracket and is fastened with a wing nut.

4. The auxiliary tooling for checking the deflection angle of an aircraft control stick according to claim 1, characterized in that, The fixing box is made of magnetic material, and the digital angle display box is adsorbed onto the inner wall of the fixing box.

5. The auxiliary tooling for checking the deflection angle of an aircraft control stick according to claim 4, characterized in that, The fixed box is externally connected with a locking screw, which is threaded to the side wall of the fixed box and passes through the side wall of the fixed box to press against the digital angle box.

6. The auxiliary tooling for checking the deflection angle of an aircraft control stick according to claim 2, characterized in that, The linkage assembly includes: a rod body, a knob, and a screw; the rod body is divided into a first half rod body and a second half rod body along its axial direction, and the first half rod body and the second half rod body are interlocked; the screw passes through the first half rod body and the second half rod body and is connected to the knob.

7. The auxiliary tooling for checking the deflection angle of an aircraft control stick according to claim 6, characterized in that, The clamp and fixing box are each provided with a ball head at one end connected to the rod body. Both ends of the first half rod body and the second half rod body are provided with hemispherical grooves. After the first half rod body and the second half rod body are fastened together, the two hemispherical grooves lock the ball head.

8. The auxiliary tooling for checking the deflection angle of an aircraft control stick according to claim 6, characterized in that, A washer is provided at the contact point between the knob and the second half of the rod.

9. The auxiliary tooling for checking the deflection angle of an aircraft control stick according to claim 8, characterized in that, Springs are provided in the inner cavities of the first and second half rods, and the springs are sleeved on the outside of the screw.

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