CN111452995A - Airplane course control mechanism stroke measuring equipment and using method - Google Patents

Abstract

The invention relates to a stroke measurement device and a use method of an aircraft course control mechanism, which belong to the field of mechanical technology measurement. Including base clamping fixture, bidirectional deflection device, measuring scale plate, precision bearing, level measuring device, scale plate bracket, pointer adjusting mechanism, bearing, connecting pin and adjusting device. The steering joint, the connecting bolt and the connecting rod together form a bidirectional deflection device, which is used for connecting the base clamping fixture and the measuring ruler. The scale tray bracket provides a mounting bracket for the precision bearing, the level measuring device, the pointer adjustment mechanism and the connecting pin shaft. After the universal clamp in the adjusting device is fixed on the support arm, the ruler tray bracket can be kept horizontal by adjusting the angles of the ruler support arm joint, the support arm joint and the universal joint to ensure the accuracy of the measurement data. The invention has novel mechanical structure, high flexibility, simple operation, provides work efficiency and can ensure the accuracy of measurement data.

Description

Aircraft course control mechanism travel measurement equipment and method of use

technical field

The invention belongs to the field of mechanical technical measurement, and relates to the accurate measurement of the travel amount of the deflection mechanism on the motion track in the narrow cabin where it is difficult to determine the measurement reference during the travel measurement process of the deflection mechanism of the aircraft heading control system, On the basis of reducing the difficulty of measurement, the accuracy of measurement data and the efficiency of work can be strictly guaranteed.

Background technique

During the debugging of the aircraft control system, it is necessary to accurately debug and measure the deflection angles and strokes of the input mechanisms in all directions of the control system. However, due to the very small space in the aircraft cockpit, when the cables, conduits and finished products of each system are installed, The maneuverable space becomes more limited, which undoubtedly adds great difficulty to the travel measurement of the yaw deflection mechanism. At present, the conventional practice is to use one end of the steel ruler to contact the measuring point of the yaw deflection mechanism, and the other end to hold it by hand, and find the zero reference point corresponding to the steel ruler on the side console. Press down the corresponding value X1, and then step on the pedal with your foot, so that the deflection mechanism and the steel ruler are deflected together until the deflection mechanism and the limit jacking wire collide. At this time, write down the zero reference point on the steel ruler. Then, the stroke of the deflection mechanism in this direction of the control system is X=X2-X1; if the value of X meets the specified value, the debugging and measurement work is over, on the contrary, it is necessary to re-adjust the limit wire in the corresponding direction, and then re-measure until X After the value conforms to the specified range value, verify the measurement data more than three times to eliminate human error. However, there are the following problems: (1) During the operation and debugging process, when the initial stroke value of the deflection mechanism exceeds the specified range, subsequent adjustments and measurements are required, but it is difficult to accurately measure the top of the steel ruler each time. Therefore, the artificial selection error of the measurement point may cause the inconsistency of each measurement data. (2) When the pedal of the deflection mechanism is manually stepped on, it is necessary to manually hold the steel ruler to follow along. In this way, due to the limited operation space, once the steel ruler held by the operator fails to follow the deflection mechanism of the control system , then the steel ruler will be separated from the measurement point of the deflection mechanism, resulting in the failure of the measurement work and the need for re-measurement, which increases the workload and operation difficulty invisibly. (3) Since the deflection mechanism of the control system needs to overcome the great resistance from the damping system during the movement, the operator should not only step on the deflection mechanism tightly with his feet when reading the X2 value during the measurement process, but also In addition, the hand on the same side also needs to hold the steel ruler to align the measurement point and the reference point. At this time, other employees are required to assist in reading the value.

In view of the above reasons, the aircraft heading control deflection mechanism stroke measuring instrument was invented. The measuring instrument has a precise mechanical structure and a simple operation process. It only needs to be clamped once to complete the deflection mechanism stroke measurement work by a single person, with high work efficiency. The measurement data is accurate.

SUMMARY OF THE INVENTION

The purpose of the patent of the present invention is to use the flexible adjusting arm device and the low-resistance sliding scale measuring mechanism to form a travel measuring instrument for the aircraft heading control and deflection mechanism. The precise mechanical structure design greatly solves the problems of low accuracy of measurement data and difficult operation caused by human factors and the defects of the measuring equipment itself.

The technical scheme adopted in the present invention is:

An aircraft heading control mechanism stroke measurement equipment, comprising a base clamping fixture 1, a steering joint 2, a connecting bolt 3, a connecting rod 4, a measuring ruler plate 5, a precision bearing 6, a level measuring device 7, a ruler plate bracket 8, a pointer The adjusting mechanism 9 , the bearing 10 , the connecting pin 16 and the adjusting device, wherein the adjusting device includes a universal clamp 11 , a support arm joint 12 , a joint locking device 13 , a support arm joint 14 , and a universal joint 15 .

The base clamping fixture 1 is used to fix one end of the measuring ruler plate of the whole measuring instrument on the pedal support arm of the deflection mechanism, thereby ensuring the consistency of each measurement point on the pedal of the deflection mechanism, and eliminating the error caused by the measuring point. .

The steering joint 2, the connecting bolt 3 and the connecting rod 4 together form a bidirectional deflection device, which is used to connect the base clamping fixture 1 with the measuring ruler plate 5, and realize flexible deflection in the horizontal direction and longitudinal direction, thereby improving the measurement data accuracy. The measuring ruler plate 5 is used to provide a constant dimension dial for the entire measuring device. The bearing 10 is used to ensure the flexible deflection of the steering joint 2 on the base clamping fixture 1 and reduce the dimensional error and the rotational resistance caused by the mechanical loss of rotational friction. One end of the steering joint 2 is connected with the bearing 10 , and the other end is connected with the connecting rod 4 through the connecting bolt 3 , and the connecting rod 4 is connected with the measuring disc 5 .

The said ruler tray bracket 8 provides a precision mounting bracket for the precision bearing 6, the level measuring device 7, the pointer adjustment mechanism 9 and the connecting pin shaft 16. The ruler tray bracket 8 is arranged on the measurement ruler tray 5, and can pass through. The precision bearing 6 moves on the measuring disc 5 . The precision bearing 6 has a particularly small resistance to rotation of the precision bearing, so it can reduce the resistance when it slides with the measuring ruler disc 5 and the inaccuracy of measurement data caused by unnecessary mechanical wear.

The level measuring device 7 is arranged above the scale plate bracket 8, at the upper part of the scale of the scale plate 5, and is used to indicate whether the scale plate bracket 8 is adjusted to be level in the longitudinal direction.

The pointer adjustment mechanism 9 is mainly used to adjust the pointer at the initial integer reference point of the measuring ruler disc 5 under the condition that the deflection mechanism is not subjected to external force, which is convenient for later data reading and calculation.

The connecting pin shaft 16 is arranged at the bottom of the ruler tray bracket 8 , and is located at the lower part of the scale of the measuring ruler tray 5 .

The universal clamp 11, the support arm joint 12, the joint locking device 13, the support arm joint 14 and the universal joint 15 together constitute a universal adjustment mechanism, and the connecting pin 16 is used to connect the ruler and pan bracket 8. Connect with the universal connector 15. The universal clamp 11, the arm joint 12 are connected, the arm joint 14, and the universal joint 15 are connected in sequence, and the joint locking device 13 is provided at the connection point of the arm joint 12 and the arm joint 14. After the universal clamp 11 is fixed on the support arm in the cockpit of the aircraft, the ruler tray bracket 8 is kept horizontal by adjusting the angles of the ruler support arm joint 12, the support arm joint 14 and the universal joint 15, so as to ensure the correctness of the measurement data. accuracy.

A method for using a travel measuring device for an aircraft course control mechanism, comprising the following steps:

(1) Adjust the locking device of the base clamping fixture 1 to loosen it, then adjust the position of the base clamping fixture 1 on the support arm near the measurement point of the deflection mechanism of the aircraft heading control system, and lock the locking device tight;

(2) Loosen the locking handle of the universal clamp 11, install it on the specified support arm in the aircraft cockpit, and then tighten the locking handle of the universal clamp 11 to fix it;

(3) Loosen the locking screw of the universal joint 15, so that the connecting pin shaft 16 is inserted into the pin hole of the universal joint 15, and then tighten the locking screw;

(4) Unscrew the joint locking device 13, then adjust the mutual angle of the arm joint 12, the arm joint 14 and the universal joint 15, and make the measuring ruler plate 5 in a horizontal state by observing the level measuring device 7, Finally, tighten the joint locking device 13;

(5) Adjust the pointer of the pointer adjustment mechanism 9 so that it is in an integer position on the measuring ruler plate 5 to determine the initial zero reference point X1, and then lock it;

(6) Step on the pedal of the biasing mechanism with the foot to make it reach the limit position, at this time, write down the value X2 of the pointer of the pointer adjusting mechanism 9 on the measuring ruler plate 5, and then make the pedal of the biasing mechanism slowly return to the neutral position;

(7) Calculate the stroke amount of the deflection mechanism X=X2-X1. If the value of X is within the specified range, the measurement work is over. On the contrary, it is necessary to adjust the stroke top wire of the deflection mechanism in this direction, and measure again until the stroke X until the value meets the requirements;

(8) When the measurement work is over, loosen the clamping devices of the base clamping fixture 1, the universal clamp 11 and the universal joint 15 respectively, and remove the measurement equipment, that is, the measurement work is over.

The beneficial effects of the present invention are:

(1) The patented mechanical structure of the present invention is novel, highly flexible, and easy to operate. One person can complete the measurement of the stroke of the deflection mechanism of the aircraft control system in the narrow space of the cockpit. Compared with the previous one, the work efficiency is more than 3 times. and the accuracy of the measurement data can be strictly guaranteed.

(2) Since the measurement point on the deflection mechanism of this invention patent is fixed by the base clamping fixture 1, and the two-way deflection device is formed with the steering joint 2, it can not only effectively avoid the reference point of the deflection mechanism during the movement process. phenomenon, and for the same deflection mechanism, no matter how many times the measurement is performed, the consistency of the measurement points and the stability of the measuring instrument can be guaranteed.

(3) The ruler tray bracket 8 used in this invention patent is a flexible spherical adjustment joint, so the ruler tray bracket 8 can be leveled at any angle, and there is no need to manually support the measuring instrument during the measurement process, which is similar to the previous measurement tooling. It not only reduces the difficulty of operation, but also widens the adjustment range and ensures the efficiency of measurement work.

(4) Since the invention patent is provided with a pointer adjustment mechanism 9, it can arbitrarily adjust the initial position of the pointer as the initial zero reference point in the initial state of the deflection mechanism, which not only facilitates the reading of data and subsequent calculations, The most important thing is to ensure the accuracy of the measurement data.

(5) Another highlight of the invention patent is that it uses two precision bearings 6 as the sliding contact device of the measuring scale plate 5 and the scale plate bracket 8, which reduces the sliding resistance of the measuring instrument and its own mechanical wear, ensuring that The accuracy of the measuring instrument itself. At the same time, the measuring ruler disc 5 in the measuring instrument can select different stroke ruler discs according to the different measurement range, area and structure, so as to adapt to various measurement environments and measurement requirements.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Figure 2 is a top view of the base clamping fixture;

Figure 3 is a schematic diagram of the structure of the adjustment device.

In the picture: 1 base clamping fixture, 2 steering joint, 3 connecting bolts, 4 connecting rods, 5 measuring scales, 6 precision bearings, 7 level measuring devices, 8 scales brackets, 9 pointer adjustment mechanisms, 10 bearings, 11 Universal clamp, 12 arm joints, 13 joint locking devices, 14 arm joints, 15 universal joints, 16 connecting pins.

Detailed ways

The present invention will be further described below with reference to specific embodiments.

An aircraft heading control mechanism stroke measurement equipment. The tooling of the present invention mainly consists of a base clamping fixture 1, a steering joint 2, a connecting bolt 3, a connecting rod 4, a measuring ruler plate 5, a precision bearing 6, a level measuring device 7, a ruler plate Bracket 8, pointer adjustment mechanism 9, bearing 10, universal clamp 11, arm joint 12, joint locking device 13, arm joint 14, universal joint 15, connecting pin 16, the specific structure is shown in Figure 1 , Figure 2, Figure 3.

The base clamping fixture 1 is mainly used to fix one end of the measuring ruler plate of the whole measuring instrument on the pedal arm of the deflection mechanism, thereby ensuring the consistency of each measurement point on the pedal of the deflection mechanism and eliminating the error caused by the measuring point. ; The steering joint 2, the connecting bolt 3 and the connecting rod 4 together form a bidirectional deflection device, and its purpose is mainly used to connect the base clamping fixture 1 with the measuring ruler plate 5, and realize flexible deflection in the horizontal direction and longitudinal direction, thereby improving the The accuracy of the measurement data; the measuring ruler disc 5 mainly provides a constant size dial for the entire measuring device; the precision bearing 6 has a particularly small resistance to the rotation of the precision bearing, so it can reduce the slippage when it slides with the measuring ruler disc 5. The inaccuracy of measurement data caused by resistance and unnecessary mechanical wear; the level measuring device 7 is mainly used to indicate whether the ruler tray bracket 8 is adjusted horizontally in the longitudinal direction; the pointer adjustment mechanism 9 is mainly used to adjust the deflection mechanism. In the case of external force, the pointer is at the initial integer reference point of the measuring ruler disc 5 to facilitate the later data reading and calculation; the ruler disc bracket 8 is the precision bearing 6, the level measuring device 7, the pointer adjusting mechanism 9 and the connecting pin shaft. 16 Provides a precision mounting bracket; the bearing 10 is mainly used to ensure the flexible deflection of the steering joint 2 on the base clamping fixture 1, reducing the mechanical loss of rotational friction, resulting in dimensional errors and rotational resistance; universal fixture 11 Arms The joint 12, the joint locking device 13, the support arm joint 14 and the universal joint 15 together constitute a universal adjustment mechanism, mainly when the universal clamp 11 is fixed on the support arm in the aircraft cockpit, by adjusting the ulnar support arm joint 12. The angle of the arm joint 14 and the universal joint 15 keeps the scale bracket 8 horizontal to ensure the accuracy of the measurement data; the connecting pin 16 is used to connect the scale bracket 8 and the universal joint 15 stand up.

A method for using a travel measuring device for an aircraft course control mechanism, comprising the following steps:

(1) Adjust the locking device of the base clamping fixture 1 to loosen it, then adjust the position of the base clamping fixture 1 on the support arm near the measurement point of the deflection mechanism of the aircraft heading control system, and lock the locking device tight;

(2) Loosen the locking handle of the universal clamp 11, install it on the specified support arm in the aircraft cockpit, and then tighten the locking handle of the universal clamp 11 to fix it;

(3) Loosen the locking screw of the universal joint 15, so that the connecting pin shaft 16 is inserted into the pin hole of the universal joint 15, and then tighten the locking screw;

(4) Unscrew the joint locking device 13, then adjust the mutual angle of the arm joint 12, the arm joint 14 and the universal joint 15, and make the measuring ruler plate 5 in a horizontal state by observing the level measuring device 7, Finally, tighten the joint locking device 13;

(5) Adjust the pointer of the pointer adjustment mechanism 9 so that it is in an integer position on the measuring ruler plate 5 to determine the initial zero reference point X1, and then lock it;

(6) Step on the pedal of the biasing mechanism with the foot to make it reach the limit position, at this time, write down the value X2 of the pointer of the pointer adjusting mechanism 9 on the measuring ruler plate 5, and then make the pedal of the biasing mechanism slowly return to the neutral position;

(7) Calculate the stroke amount of the deflection mechanism X=X2-X1. If the value of X is within the specified range, the measurement work is over. On the contrary, it is necessary to adjust the stroke top wire of the deflection mechanism in this direction, and measure again until the stroke X until the value meets the requirements;

(8) When the measurement work is over, loosen the clamping devices of the base clamping fixture 1, the universal clamp 11 and the universal joint 15 respectively, and remove the measurement equipment, that is, the measurement work is over.

The above-mentioned embodiments only represent the embodiments of the present invention, but should not be construed as a limitation on the scope of the present invention. It should be pointed out that for those skilled in the art, without departing from the concept of the present invention, Several modifications and improvements can also be made, which all belong to the protection scope of the present invention.

Claims (2)

1. an aircraft heading control mechanism travel measuring device, is characterized in that, the described aircraft heading control mechanism travel measuring equipment comprises a base clamping fixture (1), a steering joint (2), a connecting bolt (3), a connecting rod ( 4), measuring scale plate (5), precision bearing (6), level measuring device (7), scale plate bracket (8), pointer adjustment mechanism (9), bearing (10), connecting pin (16) and An adjustment device, wherein the adjustment device comprises a universal clamp (11), a support arm joint (12), a joint locking device (13), a support arm joint (14), and a universal joint (15); The base clamping fixture (1) is used to fix one end of the measuring ruler plate of the entire measuring instrument on the pedal support arm of the deflection mechanism, so as to ensure the consistency of each measurement point on the pedal of the deflection mechanism; The steering joint (2), the connecting bolt (3) and the connecting rod (4) together constitute a two-way deflection device, which is used to connect the base clamping fixture (1) with the measuring ruler plate (5), and in the horizontal direction. The direction and longitudinal direction realize flexible deflection; the measuring scale plate (5) is used to provide a constant size dial for the entire measuring device; the bearing (10) is used to ensure that the steering joint (2) is clamped on the base Flexible deflection on (1); one end of the steering joint (2) is connected with the bearing (10), and the other end is connected with the connecting rod (4) through the connecting bolt (3), and the connecting rod (4) is connected with the measuring ruler plate (5). )connect; The scale tray bracket (8) provides a precision mounting bracket for the precision bearing (6), the level measuring device (7), the pointer adjustment mechanism (9) and the connecting pin shaft (16), and can pass through the precision bearing ( 6) Move on the measuring ruler disc (5); The described level measuring device (7) is arranged above the ruler tray bracket (8), at the upper part of the scale of the measurement ruler tray (5), to indicate whether the ruler tray bracket (8) is horizontally adjusted in the longitudinal direction; The pointer adjustment mechanism (9) is mainly used to adjust the pointer at the initial integer reference point of the measuring ruler disc (5) under the condition that the deflection mechanism is not subjected to external force; The connecting pin (16) is arranged at the bottom of the ruler tray bracket (8); The universal clamp (11), the support arm joint (12), the joint locking device (13), the support arm joint (14) and the universal joint (15) together constitute a universal adjustment mechanism, and the connecting pin The shaft (16) is used to connect the ruler tray bracket (8) and the universal joint (15); the universal clamp (11), the arm joint (12) are connected, the arm joint (14), the universal joint (14), the universal joint Connect to the connector (15) in sequence, the arm joint (12) is connected, and the arm joint (14) is connected with a joint locking device (13); when the universal clamp (11) is fixed on the arm in the cockpit of the aircraft After installation, the ruler tray bracket (8) is kept horizontal by adjusting the angles of the ruler support arm joint (12), the support arm joint (14) and the universal joint (15) to ensure the accuracy of the measurement data. 2. the using method of the aircraft course control mechanism travel measuring device according to claim 1, is characterized in that, comprises the following steps: (1) Adjust the locking device of the base clamping fixture (1) to loosen it, then adjust the position of the base clamping fixture (1) on the support arm near the measurement point of the deflection mechanism of the aircraft heading control system, and place the The locking device is locked; (2) Loosen the locking handle of the universal clamp (11), install it on the specified support arm in the aircraft cockpit, and then tighten the locking handle of the universal clamp (11) to make it fixed; (3) Loosen the locking screw of the universal joint (15), insert the connecting pin (16) into the pin hole of the universal joint (15), and then tighten the locking screw; (4) Loosen the joint locking device (13), and then adjust the mutual angle between the arm joint (12), the arm joint (14) and the universal joint (15), by observing the level measuring device (7) , so that the measuring ruler disc (5) is in a horizontal state, and finally tighten the joint locking device (13); (5) Adjust the pointer of the pointer adjustment mechanism (9) so that it is at an integer position on the measuring ruler disc (5) to determine the initial zero reference point X1, and then lock it; (6) Step on the pedal of the biasing mechanism with your foot to make it reach the limit position. At this time, write down the value X2 of the pointer of the pointer adjusting mechanism (9) on the measuring ruler plate (5), and then make the pedal of the biasing mechanism slowly return to the neutral position. ; (7) Calculate the stroke amount of the deflection mechanism X=X2-X1. If the value of X is within the specified range, the measurement work is over. On the contrary, it is necessary to adjust the stroke top wire of the deflection mechanism in this direction, and measure again until the stroke X until the value meets the requirements; (8) When the measurement work is over, loosen the clamping device of the base clamping fixture (1), the universal clamp (11) and the universal joint (15) respectively, and remove the measurement equipment, that is, the measurement work is over. .

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