Device for detecting limit distance between axis of actuating cylinder and articulated shaft of support connecting rod

Abstract

A device for detecting the limiting distance between the axis of an actuator cylinder and the hinged shaft of a supporting connecting rod comprises an auxiliary frame, a universal hinge and a telescopic scale. The auxiliary frame is of a frame structure, and the left side wall and the right side wall of the auxiliary frame are hinged to the two supporting connecting rods of the actuator cylinder component. The upper end of the universal hinge is fixedly assembled with the bottom of the auxiliary frame; the lower end of the universal hinge is fixedly assembled with the upper end of the extension scale; a contact at the lower end of the extension scale abuts against the outer wall of an actuator cylinder body of the actuator cylinder part, and spatial swing of the extension scale is achieved through a universal hinge. According to the utility model, through cooperation of the auxiliary frame, the universal hinge and the extension scale, accurate measurement of the limit distance between the central axis of the actuator cylinder part on the airplane and the connecting rod hinge shaft is realized, and the purposes of ensuring the reliability of a detection result and safe flight of the airplane are achieved.

Description

Technical Field

[0001] This utility model relates to the field of testing and measurement technology, specifically a detection device for the limit distance between the central axis of an actuator cylinder component and its connecting rod hinge axis on an aircraft. Background Technology

[0002] An actuation cylinder component for aircraft has support rods at both ends of its actuation cylinder body. One end of each support rod is hinged to the actuation cylinder body, and the other end is connected to the actuator via a hinge shaft. To ensure safe flight, during aircraft maintenance, the ultimate distance H between the actuation cylinder component's central axis and the hinge shaft of the support rods needs to be measured after assembly. However, since both the actuation cylinder body and the hinge shaft of the support rods are cylindrical structures, and the central axis of the actuation cylinder component and the hinge shafts of the two rods are spatially intersecting, it is difficult to accurately measure the ultimate distance H. Therefore, an innovative device is needed to detect the ultimate distance between the actuation cylinder's central axis and the hinge shaft of its connecting rods to meet the requirements of aircraft maintenance operations. Utility Model Content

[0003] This utility model provides a device for detecting the limit distance between the actuator cylinder axis and the hinge axis of the support link. It aims to accurately measure the limit distance between the central axis of the actuator cylinder component and the hinge axis of the support link by using an auxiliary frame, a universal hinge, and a telescopic ruler, thereby ensuring the reliability of the test results and the safe flight of the aircraft.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A device for detecting the limit distance between the axis of an actuator cylinder and the hinge axis of a support link includes an auxiliary frame, a universal hinge, and a telescopic ruler. The auxiliary frame is a frame structure, and its left and right side walls are hinged to two sets of support links of the actuator cylinder component. The upper end of the universal hinge is fixedly assembled to the bottom of the auxiliary frame, and the lower end of the universal hinge is fixedly assembled to the upper end of the telescopic ruler. The lower end contact of the telescopic ruler abuts against the outer wall of the actuator cylinder body of the actuator cylinder component, and the telescopic ruler swings in space through the universal hinge.

[0006] The aforementioned limit distance detection device for the hinge axis of the actuator cylinder and the hinge axis of the support link has a universal hinge structure that is a ball bearing structure, comprising a ball seat and a ball body. The ball seat is a hemispherical shell with an opening facing downwards, and its inner wall is a spherical curved surface that matches the outer surface of the ball. The upper end of the ball seat is fixedly connected to an auxiliary frame. The ball body is fitted into the inner cavity of the ball seat, and a telescopic ruler is installed at the bottom of the ball body along the normal direction of the spherical surface.

[0007] The aforementioned limit distance detection device between the axis of the actuator cylinder and the hinge axis of the support link has the upper end of the ball seat assembled with the auxiliary frame through a threaded connection structure.

[0008] The aforementioned limit distance detection device between the actuator cylinder axis and the hinge axis of the support connecting rod has a ball seat cavity volume greater than half the volume of the ball, and the ball is pressed into the ball seat cavity by a pressing device.

[0009] The aforementioned limit distance detection device for the hinge axis between the actuator cylinder axis and the support link hinge axis has hinge holes on the left and right side walls of the auxiliary frame. The auxiliary frame is hinged to two sets of support links in the actuator cylinder component through pins passing through the hinge holes.

[0010] The aforementioned limit distance detection device between the actuator cylinder axis and the hinge axis of the support link has a threaded hole that mates with the ball seat at the middle part of the lower end of the auxiliary frame.

[0011] The aforementioned limit distance detection device for the hinge axis of the actuator cylinder and the support connecting rod includes a telescopic ruler comprising a fixed seat, a telescopic rod, and a compression spring. The upper part of the fixed seat is a screw structure, which is connected to a ball via the screw. The lower part of the fixed seat is a sleeve structure, in which the telescopic rod and the compression spring are installed. The compression spring is arranged along the axial direction of the fixed seat and is located between the sleeve and the telescopic rod.

[0012] The aforementioned limit distance detection device between the axis of the actuator cylinder and the hinge axis of the support link has a size scale on the outer wall of the telescopic rod, and the bottom of the telescopic rod is a spherical contact.

[0013] This invention provides a device for detecting the limit distance between the actuator cylinder axis and the hinge axis of the support rod. It can be hinged to the support rod of the actuator cylinder component being tested via an auxiliary frame. This allows the support rod of the actuator cylinder to be pulled to its limit position. Then, through the cooperation of a universal hinge and a telescopic ruler, the telescopic ruler can be rotated in space. While maintaining contact between the telescopic ruler's contact point and the outer wall of the actuator cylinder being tested, the minimum dimension value displayed by the telescopic rod is the limit distance between the actuator cylinder axis and the hinge axis of the support rod. This allows for accurate measurement of the limit distance between the actuator cylinder's central axis and the hinge axis of its support rod, ensuring the reliability of the test results and the safe flight of the aircraft. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model and its assembly with the workpiece;

[0015] Figure 2 yes Figure 1 A schematic diagram after spatial rotation at a certain angle;

[0016] Figure 3 yes Figure 1 The main view;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the auxiliary frame;

[0018] Figure 5This is a schematic diagram of the universal hinge, the telescopic ruler structure, and their assembly relationship.

[0019] Explanation of each label in the diagram:

[0020] 1 is the actuator body; 2 is the support rod; 3 is the auxiliary frame, 3-1 is the hinge hole, 3-2 is the threaded hole; 4 is the pin; 5 is the universal hinge, 5-1 is the ball seat, 5-2 is the ball; 6 is the telescopic ruler, 6-1 is the fixed seat sleeve, 6-2 is the telescopic rod, 6-2-1 is the size scale, 6-2-2 is the spherical contact, 6-3 is the compression spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] See Figure 1. Figure 2 , Figure 3 This utility model provides a device for detecting the limit distance between the axis of the actuator cylinder and the hinge axis of the support link. It includes an auxiliary frame 3, a universal hinge 5, and a telescopic ruler 6. The auxiliary frame 3 is a frame structure, and the left and right side walls of the auxiliary frame 3 are hinged to the two sets of support links 2 of the actuator cylinder component. The upper end of the universal hinge 5 is fixedly assembled to the bottom of the auxiliary frame 3, and the lower end of the universal hinge 5 is fixedly assembled to the upper end of the telescopic ruler 6. The lower end contact of the telescopic ruler 6 abuts against the outer wall of the actuator cylinder body 1 of the actuator cylinder component, and the telescopic ruler 6 can swing in space through the universal hinge 5.

[0023] See Figure 1 , Figure 2 , Figure 3 , Figure 5 The limit distance detection device for the hinge shaft between the actuator cylinder axis and the support connecting rod of this utility model has a universal hinge 5 with a ball bearing structure, comprising a ball seat 5-1 and a ball 5-2. The ball seat 5-1 is a downward-opening hemispherical shell, and its inner wall is a spherical curved surface that matches the outer surface of the ball 5-2. The upper end of the ball seat 5-1 is fixedly connected to the auxiliary frame 3. The ball 5-2 is fitted into the inner cavity of the ball seat 5-1, and a telescopic ruler 6 is installed at the bottom of the ball 5-2 along the normal direction of the spherical surface. As a preferred embodiment of this utility model, the upper end of the ball seat 5-1 is assembled with the auxiliary frame 3 through a threaded connection structure. The volume of the inner cavity of the ball seat 5-1 is greater than half the volume of the ball 5-2, and the ball 5-2 is pressed into the inner cavity of the ball seat 5-1 by a pressing device.

[0024] See Figure 1 , Figure 2 , Figure 3 , Figure 4The limit distance detection device for the hinge axis of the actuator cylinder and the hinge axis of the support link described in this utility model has hinge holes 3-1 on the left and right side walls of the auxiliary frame 3. The auxiliary frame (3) is hinged to the two sets of support links 2 in the actuator cylinder component by a pin 4 passing through the hinge hole 3-1. A threaded hole 3-2 that cooperates with the ball seat 5-1 is provided in the middle part of the lower end of the auxiliary frame 3.

[0025] See Figure 1 , Figure 2 , Figure 3 , Figure 5 In a preferred embodiment of the limit distance detection device between the actuator axis and the hinge axis of the support rod described in this utility model, the telescopic ruler 6 includes a fixed seat 6-1, a telescopic rod 6-2, and a compression spring 6-3; the upper part of the fixed seat 6-1 is a screw structure, and the fixed seat 6-1 is connected to the ball 5-2 through the screw; the lower part of the fixed seat 6-1 is a sleeve structure, in which the telescopic rod 6-2 and the compression spring 6-3 are installed; the compression spring 6-3 is arranged along the axis of the fixed seat and is located between the sleeve and the telescopic rod 6-2; the outer wall of the telescopic rod 6-2 is provided with a size scale 6-2-1, and the bottom of the telescopic rod 6-2 is a spherical contact 6-2-2.

[0026] See Figures 1 to 5 An actuation cylinder component for an aircraft has support rods 2 at both ends of its actuation cylinder body 1. One end of each support rod 2 is hinged to the actuation cylinder body 1, and the other end is connected to an actuator via a hinge shaft. To ensure safe flight, during aircraft maintenance, the limiting distance H between the central axis of the actuation cylinder body 1 and the hinge shafts of the support rods 2 needs to be measured after assembly. However, because the hinge shafts of both the actuation cylinder body 1 and the support rods 2 are cylindrical, and the central axis of the actuation cylinder component and the hinge shafts of the two support rods 2 intersect spatially, it is difficult to accurately measure the value of the limiting distance H between them. To solve the above problems, this utility model provides a device for detecting the limit distance between the axis of the actuator cylinder and the hinge axis of the support rod. It can be hinged to the support rod 2 of the actuator cylinder component under test through an auxiliary frame 3. This allows the support rod 2 of the actuator cylinder component to be pulled to its limit position. Then, through the cooperation of the universal hinge 5 and the telescopic ruler 6, the telescopic ruler 6 can be rotated in space. While keeping the spherical contact 6-2-2 of the telescopic rod 6-2 in contact with the outer wall of the actuator cylinder body 1 under test, the minimum size value displayed by the telescopic rod 6-2 is the limit distance H between the central axis of the actuator cylinder component and the hinge axis of the support rod. Then, this value is compared with the theoretical value to determine whether the assembly of the actuator cylinder component meets the requirements.

Claims

1. A device for detecting the limit distance between the axis of the actuator cylinder and the hinge axis of the support connecting rod, characterized in that: It includes an auxiliary frame (3), a universal hinge (5), and a telescopic ruler (6); the auxiliary frame (3) is a frame structure, and the left and right side walls of the auxiliary frame (3) are hinged to the two sets of support rods (2) of the actuator cylinder component; the upper end of the universal hinge (5) is fixedly assembled to the bottom of the auxiliary frame (3), and the lower end of the universal hinge (5) is fixedly assembled to the upper end of the telescopic ruler (6); the lower end contact of the telescopic ruler (6) abuts against the outer wall of the actuator cylinder body (1) of the actuator cylinder component, and the telescopic ruler (6) is oscillating in space through the universal hinge (5).

2. The limit distance detection device between the actuator cylinder axis and the hinge axis of the support connecting rod according to claim 1, characterized in that: The universal hinge (5) is a ball bearing structure, including a ball seat (5-1) and a ball (5-2); the ball seat (5-1) is a hemispherical shell with an opening facing downwards, and its inner wall is a spherical curved surface that matches the outer surface of the ball (5-2). The upper end of the ball seat (5-1) is fixedly connected to the auxiliary frame (3); the ball (5-2) is fitted in the inner cavity of the ball seat (5-1), and a telescopic ruler (6) is installed at the bottom of the ball (5-2) along the normal direction of the spherical surface.

3. The limit distance detection device between the actuator cylinder axis and the hinge axis of the support connecting rod according to claim 2, characterized in that: The upper end of the ball seat (5-1) is assembled with the auxiliary frame (3) through a threaded connection structure.

4. The limit distance detection device between the actuator cylinder axis and the hinge axis of the support connecting rod according to claim 3, characterized in that: The volume of the inner cavity of the ball seat (5-1) is greater than half the volume of the ball (5-2), and the ball (5-2) is pressed into the inner cavity of the ball seat (5-1) by a pressing device.

5. The limit distance detection device between the actuator cylinder axis and the hinge axis of the support connecting rod according to claim 4, characterized in that: The auxiliary frame (3) has hinge holes (3-1) on its left and right side walls. The auxiliary frame (3) is hinged to the two sets of support rods (2) in the actuating cylinder component by means of a pin (4) passing through the hinge hole (3-1).

6. The limit distance detection device between the actuator cylinder axis and the hinge axis of the support connecting rod according to claim 5, characterized in that: A threaded hole (3-2) that mates with the ball seat (5-1) is provided at the middle part of the lower end of the auxiliary frame (3).

7. The limit distance detection device between the actuator cylinder axis and the hinge axis of the support connecting rod according to any one of claims 2 to 4, characterized in that: The telescopic ruler (6) includes a fixed seat (6-1), a telescopic rod (6-2), and a compression spring (6-3). The upper part of the fixed seat (6-1) is a screw structure, and the fixed seat (6-1) is connected to the ball (5-2) through the screw. The lower part of the fixed seat (6-1) is a sleeve structure, in which the telescopic rod (6-2) and the compression spring (6-3) are installed. The compression spring (6-3) is arranged along the axial direction of the fixed seat and is located between the sleeve and the telescopic rod (6-2).

8. The limit distance detection device between the actuator cylinder axis and the hinge axis of the support connecting rod according to claim 7, characterized in that: The telescopic rod (6-2) has a size scale (6-2-1) on its outer wall, and the bottom of the telescopic rod (6-2) is a spherical contact (6-2-2).

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