Nacelle tilting actuator comprehensive test tool

Abstract

This utility model belongs to the field of comprehensive testing technology and relates to a comprehensive testing fixture for a nacelle tilting actuator. It includes: a platform (1), a support base (2), a rocker arm (3), a mounting bracket (4), an oil collection box (5), a guardrail (6), and an actuator (7); wherein, the support base (2) and the mounting bracket (4) are fixed on the platform of the platform (1) at a predetermined distance; an open space is provided on the platform of the platform (1) to avoid the actuator (7); an oil collection box (5) is provided below the open space on the platform of the platform (1); the rocker arm (3) is L-shaped and one end of the rocker arm (3) is connected to the support base (2) through a single and double ear structure; the other end of the rocker arm (3) is connected to the actuator (7) through a single and double ear structure; a first slider (23) and a second slider (24) are installed at the end of the platform (1); the guardrail (6) is installed on the first slider (23) and the second slider (24) for telescopic movement.

Description

Technical Field

[0001] This utility model belongs to the field of comprehensive testing technology and relates to a comprehensive testing fixture for a nacelle tilting actuator. Background Technology

[0002] The nacelle tilt actuator is a core component of tiltrotor aircraft, serving as the direct execution mechanism for switching between fixed-wing and helicopter modes. Unlike traditional hydraulic actuators, the nacelle tilt actuator is more complex in structure and driving principle. Currently, integrated testing fixtures for transmission hydraulic actuators are only suitable for linear motion, while the nacelle tilt actuator involves rotational motion between 0° and 90°. Furthermore, transmission hydraulic actuators generally use a bow and stern lug connection, while the nacelle tilt actuator uses a rotating shaft connection. Therefore, traditional integrated testing fixtures for hydraulic actuators cannot meet the relevant testing requirements of the nacelle tilt actuator. To ensure the successful development of the nacelle tilt actuator, there is an urgent need for a utility model of an integrated testing fixture suitable for nacelle tilt actuators. Utility Model Content

[0003] Purpose of the utility model: To provide a comprehensive testing fixture for nacelle tilting actuators, solving the problem that traditional hydraulic actuator testing fixtures cannot meet the relevant testing requirements of nacelle tilting actuators.

[0004] Technical solution:

[0005] A comprehensive testing fixture for a nacelle tilting actuator includes: a platform 1, a support base 2, a rocker arm 3, a mounting bracket 4, an oil collection box 5, a guardrail 6, and an actuator 7. The support base 2 and the mounting bracket 4 are fixed to the platform surface of the platform 1 at a predetermined distance. An open space is provided on the platform surface of the platform 1 to allow the actuator 7 to pass. An oil collection box 5 is located below the open space on the platform surface of the platform 1. The rocker arm 3 is L-shaped, with one end connected to the support base 2 via a single / double-ear structure. The other end of the rocker arm 3 is connected to the actuator 7 via a single / double-ear structure. A first slider 23 and a second slider 24 are mounted on the end of the platform 1. The guardrail 6 is mounted on the first slider 23 and the second slider 24 for telescopic movement.

[0006] Furthermore, one end of the rocker arm 3 is a single ear, and the single ear hole is a bearing hole. The first bearing 9 is installed in the bearing hole of the rocker arm 3. The first bolt 13 passes through the retaining ring 14, one ear on the support seat 2, the first bearing 9, and the other ear on the support seat 2 in sequence before being fixed to the first nut 8.

[0007] Furthermore, an tilt sensor 10 is installed on the rocker arm 3 to monitor the rotation angle of the rocker arm.

[0008] Furthermore, the second bolt 12 passes through the lug on the rocker arm 3 and the lug at the end of the actuator 7 in sequence before being connected to the second nut 11.

[0009] Furthermore, the mounting support 4 includes two symmetrical sub-supports, each of which includes: a lower support 15, a fixing disc 16, an upper cover plate 17, a third bolt 18, a fourth bolt 19, a first copper ring 20, a second bearing 21, and a second copper ring 22. The lower bolt hole of the lower support 15 is designed as an oblong hole for adjusting the position of the mounting support 4 on the platform 1. The bottom of the lower support 15 is designed with a sliding groove for adjusting the distance between the two sub-supports. The second copper ring 22 and the second bearing 21 are sequentially placed in the annular groove at the upper end of the lower support 15. The first copper ring 20 is placed on the second bearing 21 and positioned in the annular groove of the upper cover plate 17. The upper cover plate 17 is connected to the lower support 15 by the third bolt 18 and the fourth bolt 19. The fixing disc 16 is connected to the upper cover plate 17 and the lower support 15 by bolts.

[0010] Furthermore, the platform 1 is equipped with a first guide rail 25 and a second guide rail 26 for connecting with the sliding groove of the mounting support 4; two support plates are welded on the platform 1 for placing the oil collection box 5; the bottom of the oil collection box 5 is designed with an oil pipe for draining oil.

[0011] Beneficial effects:

[0012] The integrated test fixture for the nacelle tilting actuator of this utility model, through the structure and connection of the support base 2, rocker arm 3, and mounting bracket 4, meets the test requirements of the nacelle tilting actuator and ensures the smooth development of the nacelle tilting actuator. Attached Figure Description

[0013] Figure 1 This is an overall diagram of a nacelle tilting actuator integrated test fixture provided in an embodiment of this application;

[0014] Figure 2 This is a diagram of the rocker arm assembly of a nacelle tilting actuator integrated test fixture provided in an embodiment of this application;

[0015] Figure 3 This is a diagram showing the assembly of the mounting support for a nacelle tilting actuator integrated test fixture provided in an embodiment of this application;

[0016] Figure 4 This is a diagram showing the auxiliary components of a nacelle tilting actuator integrated test fixture provided in an embodiment of this application;

[0017] The components are: 1-stand, 2-support base, 3-rocker arm, 4-mounting support, 5-oil collection box, 6-guardrail, 7-actuator, 8-first nut, 9-first bearing, 10-tilt sensor, 11-second nut, 12-second bolt, 13-first bolt, 14-retaining ring, 15-lower support, 16-fixed disc, 17-upper cover plate, 18-third bolt, 19-fourth bolt, 20-first copper ring, 21-second bearing, 22-second copper ring, 23-first slider, 24-second slider, 25-first guide rail, 26-second guide rail. Detailed Implementation

[0018] like Figure 1-4 A comprehensive testing fixture for a nacelle tilting actuator includes: a test bench 1, a support base 2, a rocker arm 3, a mounting bracket 4, an oil collection box 5, a guardrail 6, and an actuator 7. The support base 2 is mounted on the test bench 1 with eight bolts. The rocker arm 3 is mounted in the lug of the support base 2 with a first bolt 13. A first bearing 9 is installed in the bearing hole of the rocker arm 3. The first bolt 13 passes sequentially through the lug on the support base 2, a retaining ring 14, and the first bearing 9. The retaining ring 14 is located between the rocker arm 3 and the support base. Between the lugs on the rocker arm 2; the first nut 8 is installed on the first bolt 13; an angle sensor 10 is installed on the rocker arm 3 to monitor the rotation angle of the rocker arm; the second bolt 12 passes through the lugs on the rocker arm 3 and the lug at the end of the actuator 7 in sequence; the second nut 11 is installed on the second bolt 12; the mounting bracket 4 is installed on the frame 1 by bolts; the mounting bracket 4 consists of a lower support 15, a fixing disc 16, an upper cover plate 17, a third bolt 18, a fourth bolt 19, a first copper ring 20, and a second... The system consists of a bearing 21 and a second copper ring 22. The bolt holes of the lower support 15 are designed as oblong holes to adjust the position of the mounting support 4 on the platform 1. The bottom of the lower support 15 is designed with a sliding groove to adjust the distance between the two mounting supports. The second copper ring 22 and the second bearing 21 are placed sequentially in the annular groove of the lower support 15. The first copper ring 20 is placed on the second bearing 21 and placed in the annular groove of the upper cover plate 17. The upper cover plate 17 is connected to the lower support 15 by a third bolt 18 and a fourth bolt 19. The fixed disc 16 is connected to the upper cover plate 17 and the lower support 15 by bolts. The platform 1 is equipped with a first guide rail 25 and a second guide rail 26 for connecting with the sliding groove of the mounting support 4. Two support plates are welded on the platform 1 for placing the oil collection box 5. The bottom of the oil collection box 5 is designed with an oil pipe for draining oil. The platform 1 is equipped with a first slider 23 and a second slider 24. The guardrail 6 is installed on the first slider 23 and the second slider 24 for telescopic movement.

[0019] In one feasible implementation, firstly, unscrew the four bolts on the fixed disc 16 and remove the fixed disc 16; unscrew the third bolt 18 and the fourth bolt 19, and then remove the upper cover plate 17, the first copper ring 20, and the second bearing 21 in sequence; install the second bearing 21 on the rotating shaft of the actuator 7, and place the second bearing 21 on the second copper ring 22 in the annular groove of the lower support 15; place the first copper ring 20 and the upper cover plate 17 on the second bearing 21 in sequence, and fix the upper cover plate 17 and the lower support 15 with the third bolt 18 and the fourth bolt 19; connect the fixed disc 16 to the lower support 15 and the upper cover plate 17 with four bolts; place the lug of the actuator 7 in the middle of the lug of the rocker arm 3, insert the second bolt 12 into the lug hole of the rocker arm 3 and the lug hole of the actuator 7 in sequence, and tighten the second nut 11 on the second bolt 12. At this point, the actuator 7 has been installed on the integrated test fixture.

[0020] The lead screw of actuator 7 moves under hydraulic drive, driving rocker arm 3 to rotate from 0° to 90°. The tilt angle of rocker arm 3 can be monitored in real time by collecting signals from tilt sensor 10.

Claims

1. A comprehensive testing fixture for a nacelle tilting actuator, characterized in that, include: The components include: a platform (1), a support base (2), a rocker arm (3), a mounting bracket (4), an oil collection box (5), a guardrail (6), and an actuator (7); among which, The support base (2) and the mounting bracket (4) are fixed on the platform of the frame (1) at a predetermined distance; an open space is provided on the platform of the frame (1) to avoid the actuator (7); an oil collection box (5) is provided below the open space on the platform of the frame (1); the rocker arm (3) is L-shaped and one end of the rocker arm (3) is connected to the support base (2) through a single and double ear structure; the other end of the rocker arm (3) is connected to the actuator (7) through a single and double ear structure; a first slider (23) and a second slider (24) are installed at the end of the frame (1); a guardrail (6) is installed on the first slider (23) and the second slider (24) for telescopic movement.

2. The integrated test fixture for the nacelle tilting actuator according to claim 1, characterized in that, One end of the rocker arm (3) is a single ear, and the single ear hole is a bearing hole. The first bearing (9) is installed in the bearing hole of the rocker arm (3). The first bolt (13) passes through the retaining ring (14), one lug on the support seat (2), the first bearing (9), and another lug on the support seat (2) in sequence, and is then fixed to the first nut (8).

3. The integrated test fixture for the nacelle tilting actuator according to claim 1, characterized in that, An angle sensor (10) is installed on the rocker arm (3) to monitor the rotation angle of the rocker arm.

4. The integrated test fixture for the nacelle tilting actuator according to claim 1, characterized in that, The second bolt (12) passes through the lug on the rocker arm (3) and the lug at the end of the actuator (7) in sequence, and then connects to the second nut (11).

5. The integrated test fixture for the nacelle tilting actuator according to claim 1, characterized in that, The mounting bracket (4) includes two symmetrical sub-brackets, each of which includes: a lower bracket (15), a fixed disc (16), an upper cover plate (17), a third bolt (18), a fourth bolt (19), a first copper ring (20), a second bearing (21), and a second copper ring (22). The lower bolt hole of the lower bracket (15) is designed as an oblong hole for adjusting the position of the mounting bracket (4) on the platform (1). The bottom of the lower bracket (15) is designed with a sliding mechanism. The groove is used to adjust the distance between the two sub-supports; the second copper ring (22) and the second bearing (21) are placed in the annular groove at the upper end of the mounting lower support (15); the first copper ring (20) is placed on the second bearing (21) and placed in the annular groove of the upper cover plate (17); the upper cover plate (17) and the lower support (15) are connected by the third bolt (18) and the fourth bolt (19); the fixed disc (16) is connected to the upper cover plate (17) and the lower support (15) by bolts.

6. The integrated test fixture for the nacelle tilting actuator according to claim 1, characterized in that, The platform (1) is equipped with a first guide rail (25) and a second guide rail (26) for connecting with the sliding groove of the mounting support (4); two support plates are welded on the platform (1) for placing the oil collection box (5); the bottom of the oil collection box (5) is designed with an oil pipe for draining oil.

Images