Aviation safety belt comprehensive performance testing device

Abstract

A comprehensive performance testing device for an aviation safety belt relates to the technical field of performance detection of aeronautical parts, and is characterized in that a movable end driving mechanism pulls a movable end of a braid to move outwards along the horizontal direction, and a fixed end driving mechanism synchronously drives a fixed end of the braid to move upwards; at the moment, the tension value when the restraint length of the safety belt is reduced can be measured through a tension sensor II, then a fixed end driving mechanism drives the fixed end of the braid to move downwards, and a movable end driving mechanism synchronously drives the movable end of the braid to move inwards in the horizontal direction; at the moment, the tension value when the restraint length of the safety belt is increased can be measured through the tension sensor I. The rotating mechanism drives the buckle fixing base to rotate, the safety belt buckle deflects step by step, and testing of the locking angle of the safety belt buckle is facilitated. The turnover plate of the safety belt buckle is driven by the safety belt buckle reliability detection device to rotate repeatedly to be opened and closed, so that the reliability test of the safety belt buckle and the release force test of the safety belt buckle 11 can be realized conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of aviation parts performance detection, and in particular to an aviation safety belt comprehensive performance testing device. Background Art

[0002] Aviation seat belts mainly include upper torso restraint belts and pelvic restraint belts. Their main function is to protect the occupants on the aircraft to minimize injuries. They are composed of strips, webbing or similar devices (including all buckles or other fasteners) and all integrated metal parts. As an important component to ensure the safety of passengers, strict testing of the performance indicators of aviation seat belts is crucial. However, existing test equipment often has a single function and cannot meet multiple test requirements at the same time. It also has a low degree of automation, and the test accuracy and efficiency need to be improved. Therefore, it is particularly important to develop a test equipment that integrates multiple test functions and is efficient and accurate. Summary of the invention

[0003] In order to overcome the deficiencies of the above technologies, the present invention provides a device for realizing comprehensive, rapid and accurate testing of multiple performance indicators of aircraft safety belts.

[0004] The technical solution adopted by the present invention to overcome the technical problems is: An aviation safety belt comprehensive performance testing device, comprising: The frame has a buckle fixing seat at its upper end, the buckle fixing seat is rotatably mounted on the frame through a rotating shaft, the axis of the rotating shaft of the buckle fixing seat is arranged in a horizontal direction, and the safety belt buckle is fixed on the buckle fixing seat; A rotating mechanism is arranged on the frame and drives the buckle fixing seat to rotate; The movable end driving mechanism is arranged on the frame and is located at the right end of the buckle fixing seat. The head end of the movable end of the webbing in the safety belt buckle is connected to the movable end driving mechanism through the tension sensor II; The fixed end driving mechanism is arranged on the frame and is located at the lower end of the buckle fixing seat. The head end of the fixed end of the webbing in the safety belt buckle is connected to the fixed end driving mechanism through the tension sensor I. The fixed end of the webbing and the movable end of the webbing are at right angles to each other. When the movable end driving mechanism pulls the movable end of the webbing to the right, the fixed end of the webbing moves upward. When the fixed end driving mechanism pulls the fixed end of the webbing downward, the movable end of the webbing moves to the left; and The safety belt buckle reliability detection device is arranged on a frame and is used to drive the flip plate of the safety belt buckle to repeatedly rotate and open and close.

[0005] In order to facilitate movement, universal wheels are respectively installed at the four corners of the lower end of the frame.

[0006] Furthermore, the above-mentioned rotating mechanism includes a reducer II installed on the frame and a servo motor II coaxially connected to the input end of the reducer II, and the output shaft of the reducer II is coaxially connected to the rotating shaft of the snap-fit ​​fixing seat through a coupling I.

[0007] Furthermore, it also includes a disc-shaped scale plate I installed on the frame, which is coaxially arranged with the rotating shaft of the snap-fit ​​fixing seat, and an arrow is arranged on the snap-fit ​​fixing seat. The front end surface of the scale plate I is arranged with angle scale values ​​along the circumferential direction, and the arrow points to the angle scale value.

[0008] Furthermore, the above-mentioned movable end driving mechanism includes a linear module group I installed on the frame in the horizontal direction, a fixed seat II is installed on the sliding seat of the linear module group I, a tension sensor II is installed on the fixed seat II, and the head end of the movable end of the webbing is connected to the tension sensor II through a clamping mechanism.

[0009] Furthermore, the fixed end driving mechanism includes a linear module II installed on the frame in the vertical direction, a fixed seat I is installed on the slide of the linear module II, a tension sensor I is installed on the fixed seat I, and the head end of the fixed end of the webbing is connected to the tension sensor I.

[0010] Furthermore, the clamping mechanism includes a pressure plate II connected to the tension sensor II and a pressure plate I fixed to the upper end of the pressure plate II by screws, and the head end of the movable end of the webbing is clamped and fixed between the pressure plates I and II.

[0011] Furthermore, the above-mentioned seat belt buckle reliability detection device includes a reducer I installed in a frame, a servo motor I coaxially connected to the output shaft of the reducer I, a swing arm coaxially connected to the output shaft of the reducer I through a coupling II, a support seat installed on the frame, a guide rail installed on the outer end of the swing arm, a cylinder installed on the swing arm, and a slide seat slidably installed on the guide rail, the axis of the cylinder is parallel to the guide rail, a force sensor is installed on the slide seat, a shift block is installed on the measuring end of the force sensor, the piston rod head end of the cylinder is connected to the slide seat, the seat belt buckle is fixed to the upper end of the support seat by a fixing mechanism, when the swing arm rotates to a horizontal state and the piston rod of the cylinder is fully retracted, the shift block is located at the outer end of the opening of the seat belt buckle, and when the piston rod of the cylinder is fully extended, the shift block is inserted into the seat belt buckle and is located below the flip plate of the seat belt buckle.

[0012] In order to facilitate observation of the rotation angle, a scale plate II is also included which is installed on the frame, and angle scale values ​​are arranged on the front end surface of the scale plate II along the circumferential direction.

[0013] Furthermore, the fixing mechanism is two pressing blocks, which are fixed to the support seat by bolts. The two pressing blocks are respectively arranged at the left and right ends of the seat belt buckle, and the pressing blocks are pressed tightly on the edges on the same side of the seat belt buckle.

[0014] The beneficial effects of the present invention are as follows: the movable end driving mechanism pulls the movable end of the webbing to move outward in the horizontal direction, and the fixed end driving mechanism synchronously drives the fixed end of the webbing to move upward. At this time, the tension value when the seat belt restraint length is reduced can be measured by the tension sensor II. Then, the fixed end driving mechanism drives the fixed end of the webbing to move downward, and the movable end driving mechanism synchronously drives the movable end of the webbing to move inward in the horizontal direction. At this time, the tension value when the seat belt restraint length is increased can be measured by the tension sensor I. The rotating mechanism drives the buckle fixing seat to rotate, and the seat belt buckle gradually deflects, which is convenient for testing the locking angle of the seat belt buckle. The seat belt buckle reliability detection device drives the flip plate of the seat belt buckle to repeatedly rotate and open and close, which is convenient for realizing the reliability test of the seat belt buckle and the release force test of the seat belt buckle 11. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 It is a schematic diagram of a test state of the webbing adjustment force of the present invention; Figure 3 It is a schematic diagram of the webbing locking angle test state of the present invention; Figure 4 It is a schematic diagram of the reliability test state of the safety belt buckle of the present invention; Figure 5 It is a schematic diagram of the rotating state of the flip plate of the safety belt buckle of the present invention; In the figure, 1. frame 2. universal wheel 3. linear module I 4. linear module II 5. dial I 6. support seat 7. dial II 8. coupling I 9. buckle fixing seat 10. arrow 11. seat belt buckle 12. webbing movable end 13. webbing fixed end 14. fixing seat I 15. tension sensor I 16. fixing seat II 17. tension sensor II 18. pressure plate I 19. pressure plate II 20. screw 21. servo motor I 22. reducer I 23. coupling II 24. swing arm 25. cylinder 26. guide rail 27. slide seat 28. shift block 29. pressure block 30. servo motor II 31. reducer II 32. force sensor 111. flip plate. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1 To Attachment Figure 5 The present invention is further described.

[0017] As attached Figure 1As shown, an aviation safety belt comprehensive performance test device comprises: a frame 1, a buckle fixing seat 9 is provided at the upper end thereof, the buckle fixing seat 9 is rotatably mounted on the frame 1 through a rotating shaft, the axis of the rotating shaft of the buckle fixing seat 9 is arranged in the horizontal direction, and the safety belt buckle 11 is fixed on the buckle fixing seat 9; a rotating mechanism is arranged on the frame 1, which drives the buckle fixing seat 9 to rotate; as shown in the attached Figure 2 As shown, it also includes a movable end driving mechanism, which is arranged on the frame 1 and located at the right end of the buckle fixing seat 9, and the head end of the movable end 12 of the webbing in the safety belt buckle 11 is connected to the movable end driving mechanism through the tension sensor II 17; a fixed end driving mechanism, which is arranged on the frame 1 and located at the lower end of the buckle fixing seat 9, and the head end of the webbing fixed end 13 in the safety belt buckle 11 is connected to the fixed end driving mechanism through the tension sensor I 15, the webbing fixed end 13 and the webbing movable end 12 are at right angles to each other, when the movable end driving mechanism pulls the webbing movable end 12 to the right, the webbing fixed end 13 moves upward, and when the fixed end driving mechanism pulls the webbing fixed end 13 downward, the webbing movable end 12 moves to the left; and a safety belt buckle reliability detection device, which is arranged on the frame 1 and is used to drive the flip plate 111 of the safety belt buckle 11 to repeatedly rotate and open. The webbing of the seat belt is wrapped in the seat belt buckle 11. In actual application scenarios, the fixed end of the webbing is fixed on the aircraft seat, and the movable end 12 of the webbing is in a free state. When the movable end 12 of the webbing is pulled, the length of the fixed end 13 of the webbing is reduced. At this time, the seat belt buckle 11 is adjusted to shorten the length to reduce the restraining length of the seat belt. When the fixed end 13 of the webbing is pulled, the length of the movable end 12 of the webbing is reduced. At this time, the seat belt buckle 11 is adjusted to increase the length to increase the restraining length of the seat belt. In the initial state, the seat belt buckle 11 is arranged horizontally, and the webbing can move relative to it. When testing, the movable end driving mechanism pulls the movable end 12 of the webbing to move outward in the horizontal direction, and the fixed end driving mechanism synchronously drives the fixed end 13 of the webbing to move upward. At this time, the tension value when the seat belt restraint length is reduced can be measured by the tension sensor II 17. Then, the fixed end driving mechanism drives the fixed end 13 of the webbing to move downward, and the movable end driving mechanism synchronously drives the movable end 12 of the webbing to move inward in the horizontal direction. At this time, the tension value when the seat belt restraint length is increased can be measured by the tension sensor I 15. Repeat the above steps to repeatedly perform tension tests of reducing and increasing the seat belt restraint length.

[0018] After the seat belt buckle 11 rotates a certain angle relative to the seat belt webbing, the force of the webbing moving increases significantly. Figure 3As shown, the rotating mechanism drives the buckle fixing seat 9 to rotate, and the seat belt buckle 11 is gradually deflected. When the measurement values ​​of the tension sensor II 17 and the tension sensor I 15 reach the set maximum tension value (such as 89N) during the test of reducing the seat belt restraint length and increasing the seat belt restraint length, the deflection angle of the buckle fixing seat 9 at this time is recorded to facilitate the test of the locking angle of the seat belt buckle 11.

[0019] The seat belt buckle reliability detection device drives the flip plate 111 of the seat belt buckle 11 to rotate and open and close repeatedly, so as to facilitate the reliability test of the seat belt buckle 11 and the release force test of the seat belt buckle 11. It realizes comprehensive, rapid and accurate testing of multiple performance indicators of the seat belt, and improves the testing efficiency and quality of aviation seat belts.

[0020] In one embodiment of the present invention, universal wheels 2 are respectively installed at the four corners of the lower end of the frame 1. The universal wheels 2 can facilitate the movement of the entire frame 1, further improving the convenience of operation.

[0021] In one embodiment of the present invention, the rotating mechanism may be the following structure, which includes a reducer II 31 mounted on the frame 1 and a servo motor II 30 coaxially connected to the input end of the reducer II 31, and the output shaft of the reducer II 31 is coaxially connected to the rotating shaft of the buckle fixing seat 9 through a coupling I 8. The servo motor II 30 rotates and drives the buckle fixing seat 9 to rotate after the torque is decelerated and amplified by the reducer II 31, thereby driving the seat belt buckle 11 to rotate.

[0022] In this embodiment, preferably, a disc-shaped scale plate I 5 is mounted on the frame 1, the scale plate I 5 is coaxially arranged with the rotating shaft of the buckle fixing seat 9, an arrow 10 is arranged on the buckle fixing seat 9, and an angle scale value is arranged on the front end surface of the scale plate I 5 along the circumferential direction, and the arrow 10 points to the angle scale value. When the buckle fixing seat 9 rotates, the rotation angle of the buckle fixing seat 9 can be easily obtained by the scale value on the scale plate I 5 pointed by the arrow 10, so as to facilitate the acquisition of the locking angle of the seat belt buckle 11.

[0023] In one embodiment of the present invention, the movable end driving mechanism may be the following structure, which includes a linear module I 3 mounted on the frame 1 in the horizontal direction, a fixed seat II 16 mounted on the sliding seat of the linear module I 3, a tension sensor II 17 mounted on the fixed seat II 16, and the head end of the webbing movable end 12 is connected to the tension sensor II 17 through a clamping mechanism. The linear module I 3 can drive the fixed seat II 16 to slide in the horizontal direction, and when the fixed seat II 16 moves outward, it pulls the webbing movable end 12, which is convenient for measuring the force of reducing the length of the safety belt, and when the fixed seat II 16 moves inward, the length of the webbing movable end 12 is released.

[0024] In one embodiment of the present invention, the fixed end driving mechanism may be the following structure, which includes a linear module II 4 mounted on the frame 1 in the vertical direction, a fixed seat I 14 mounted on the slide seat of the linear module II 4, a tension sensor I 15 mounted on the fixed seat I 14, and the head end of the webbing fixed end 13 is connected to the tension sensor I 15. The linear module II 4 can drive the fixed seat I 14 to slide in the vertical direction, and when the fixed seat I 14 moves downward, it pulls the webbing fixed end 13, which is convenient for measuring the force of increasing the length of the safety belt, and when the fixed seat I 14 moves upward, the length of the webbing fixed end 13 is released.

[0025] In one embodiment of the present invention, the clamping mechanism includes a pressing plate II 19 connected to the tension sensor II 17 and a pressing plate I 18 fixed to the upper end of the pressing plate II 19 by screws 20, and the head end of the webbing movable end 12 is clamped and fixed between the pressing plate I 18 and the pressing plate II 19. When the test is completed, the pressing plate I 18 is removed from the pressing plate II 19 after loosening the screws 20, and the webbing movable end 12 can be taken out, which is convenient for connection and disassembly, and improves the detection efficiency.

[0026] As attached Figure 4 As shown, in one embodiment of the present invention, the safety belt buckle reliability detection device can be of the following structure, which includes a reducer Ⅰ 22 installed in the frame 1, a servo motor Ⅰ 21 coaxially connected to the output shaft of the reducer Ⅰ 22, and a servo motor Ⅰ 21 connected to the reducer Ⅰ 22 through a coupling Ⅱ 23. The swing arm 24 coaxially connected to the output shaft 22, the support seat 6 installed on the frame 1, the guide rail 26 installed on the outer end of the swing arm 24, the cylinder 25 installed on the swing arm 24 and the slide seat 27 slidably installed on the guide rail 26, the axis of the cylinder 25 is parallel to the guide rail 26, a force sensor 32 is installed on the slide seat 27, the measuring end of the force sensor is installed with a shift block 28, the piston rod head end of the cylinder 25 is connected to the slide seat 27, the seat belt buckle 11 is fixed to the upper end of the support seat 6 through a fixing mechanism, when the swing arm 24 rotates to a horizontal state and the piston rod of the cylinder 25 is fully retracted, the shift block 28 is located at the outer end of the opening of the seat belt buckle 11, when the piston rod of the cylinder 25 is fully extended, the shift block 28 is inserted into the seat belt buckle 11 and is located below the flip plate 11 of the seat belt buckle 11. The servo motor Ⅰ 21 rotates through the reducer Ⅰ 22 to reduce the speed and amplify the torque, and then drives the swing arm 24 to rotate through the coupling Ⅱ 23. Figure 5As shown, since the shift block 28 is inserted into the seat belt buckle 11 and is located below the flip plate 111 of the seat belt buckle 11, when the swing arm 24 rotates upward, the shift block 28 will drive the flip plate 111 to rotate upward. When the shift block 28 drives the flip plate 111 to rotate upward, the flip force is measured by the force sensor 32 to achieve the test of the release force of the seat belt buckle 11. When the flip plate 111 rotates to the set angle, the piston rod of the cylinder 25 retracts, which drives the shift block 28 to move outward relative to the seat belt buckle 11, and the shift block 28 leaves the flip plate 111. Under the spring force of the seat belt buckle 11, the flip plate 111 is reset. Repeating the above steps can achieve the cyclic flipping and opening of the flip plate 111, and complete the reliability test of the seat belt buckle 11 and the test of the release force of the seat belt buckle 11.

[0027] In one embodiment of the present invention, a scale plate II 7 is mounted on the frame 1, and angle scale values ​​are arranged on the front end surface of the scale plate II 7 along the circumferential direction. When the swing arm 24 rotates, its side edge coincides with the scale value on the scale plate II 7, so that the rotation angle can be easily read, which improves the convenience of use.

[0028] In one embodiment of the present invention, the fixing mechanism is two pressing blocks 29, which are fixed to the support seat 6 by bolts. The two pressing blocks 29 are respectively arranged at the left and right ends of the seat belt buckle 11, and the pressing blocks 29 are pressed on the edges on the same side of the seat belt buckle 11. After the seat belt buckle 11 is placed on the support seat 6, the pressing blocks 29 are fixed to the support seat 6 by bolts, and the pressing blocks 29 press the edges of the seat belt buckle 11 to fix the seat belt buckle 11.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned 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 present invention shall be included in the protection scope of the present invention.

Claims

1. An aviation safety belt comprehensive performance testing device, characterized in that: include: A frame (1) is provided with a buckle fixing seat (9) at its upper end. The buckle fixing seat (9) is rotatably mounted on the frame (1) via a rotating shaft. The axis of the rotating shaft of the buckle fixing seat (9) is arranged in a horizontal direction. The safety belt buckle (11) is fixed on the buckle fixing seat (9). A rotating mechanism, disposed on the frame (1), driving the buckle fixing seat (9) to rotate; A movable end driving mechanism is arranged on the frame (1) and is located at the right end of the buckle fixing seat (9); the head end of the movable end (12) of the webbing in the safety belt buckle (11) is connected to the movable end driving mechanism via a tension sensor II (17); A fixed end driving mechanism is arranged on the frame (1) and is located at the lower end of the buckle fixing seat (9); the head end of the fixed end (13) of the webbing in the safety belt buckle (11) is connected to the fixed end driving mechanism via a tension sensor I (15); the fixed end (13) of the webbing and the movable end (12) of the webbing are at right angles to each other; when the movable end driving mechanism pulls the movable end (12) of the webbing to the right, the fixed end (13) of the webbing moves upward; when the fixed end driving mechanism pulls the fixed end (13) of the webbing downward, the movable end (12) of the webbing moves to the left; as well as A safety belt buckle reliability detection device is arranged on a frame (1) and is used to drive a flip plate (111) of a safety belt buckle (11) to repeatedly rotate and open and close.

2. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: Universal wheels (2) are respectively installed at the four corners of the lower end of the frame (1).

3. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: The rotating mechanism comprises a reducer II (31) mounted on the frame (1) and a servo motor II (30) coaxially connected to the input end of the reducer II (31); the output shaft of the reducer II (31) is coaxially connected to the rotating shaft of the snap-fit ​​fixing seat (9) via a coupling I (8).

4. The aviation safety belt comprehensive performance testing device according to claim 3 is characterized in that: The machine also comprises a disc-shaped scale plate I (5) mounted on the frame (1), the scale plate I (5) being coaxially arranged with the rotating shaft of the buckle fixing seat (9), an arrow (10) being arranged on the buckle fixing seat (9), and an angle scale value being arranged on the front end surface of the scale plate I (5) along the circumferential direction, and the arrow (10) pointing to the angle scale value.

5. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: The movable end driving mechanism comprises a linear module I (3) mounted on a frame (1) in a horizontal direction, a fixed seat II (16) being mounted on a sliding seat of the linear module I (3), a tension sensor II (17) being mounted on the fixed seat II (16), and a head end of the movable end (12) of the webbing being connected to the tension sensor II (17) via a clamping mechanism.

6. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: The fixed end driving mechanism comprises a linear module II (4) mounted on a frame (1) in a vertical direction, a fixed seat I (14) being mounted on a slide seat of the linear module II (4), a tension sensor I (15) being mounted on the fixed seat I (14), and a head end of the fixed end (13) of the webbing being connected to the tension sensor I (15).

7. The aviation safety belt comprehensive performance testing device according to claim 5, characterized in that: The clamping mechanism comprises a pressure plate II (19) connected to a tension sensor II (17) and a pressure plate I (18) fixed to the upper end of the pressure plate II (19) by means of screws (20), and the head end of the webbing movable end (12) is clamped and fixed between the pressure plate I (18) and the pressure plate II (19).

8. The aviation safety belt comprehensive performance testing device according to claim 1, characterized in that: The safety belt buckle reliability detection device comprises a reducer I (22) installed in a frame (1), a servo motor I (21) coaxially connected to the output shaft of the reducer I (22), a swing arm (24) coaxially connected to the output shaft of the reducer I (22) via a coupling II (23), a support seat (6) installed on the frame (1), a guide rail (26) installed on the outer end of the swing arm (24), a cylinder (25) installed on the swing arm (24), and a slide seat (27) slidably installed on the guide rail (26), wherein the axis of the cylinder (25) is parallel to the guide rail (26), and the slide seat A force sensor (32) is installed on (27), and a shifting block (28) is installed on the measuring end of the force sensor. The piston rod head end of the cylinder (25) is connected to the slide seat (27), and the seat belt buckle (11) is fixed to the upper end of the support seat (6) through a fixing mechanism. When the swing arm (24) rotates to a horizontal state and the piston rod of the cylinder (25) is fully retracted, the shifting block (28) is located at the outer end of the opening of the seat belt buckle (11). When the piston rod of the cylinder (25) is fully extended, the shifting block (28) is inserted into the seat belt buckle (11) and is located below the flip plate (11) of the seat belt buckle (11).

9. The aviation safety belt comprehensive performance testing device according to claim 8, characterized in that: It also comprises a scale plate II (7) mounted on the frame (1), wherein the front end surface of the scale plate II (7) is provided with angle scale values ​​along the circumferential direction.

10. The aviation safety belt comprehensive performance testing device according to claim 8, characterized in that: The fixing mechanism comprises two pressing blocks (29), which are fixed to the support seat (6) by means of bolts. The two pressing blocks (29) are respectively arranged at the left and right ends of the seat belt buckle (11), and the pressing blocks (29) are pressed tightly against the edges on the same side of the seat belt buckle (11).

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