Axial clearance testing tool

Abstract

The utility model provides an axial clearance testing tool, and relates to the technical field of axial clearance testing of speed brake actuators of airplanes. The first positioning support is in sliding connection with the base and used for being connected with the first connecting lug; the second positioning bracket is fixedly mounted on the base and is used for being connected with the second connecting lug; the detection support is in sliding connection with the base and can stay at a designated position, and the detection support is used for clamping a detection tool; the detection tool is used for detecting the transverse movement distance of the first positioning bracket; the detection support, the second positioning support and the first positioning support are located on the same straight line. The first positioning support and the second positioning support are used for limiting deflection of the first connecting lug and the second connecting lug in the vertical direction. The axial clearance testing tool provides support for axial clearance testing work of the speed brake actuator, has the advantages of being simple in structure, low in cost, stable, reliable and convenient to measure, and solves the problems that an original factory tool is high in price and long in purchasing period.

Description

Technical Field

[0001] The utility model relates to the technical field of axial clearance testing of a speed brake actuator of an aircraft, in particular to an axial clearance testing tool. Background Art

[0002] The aircraft's speed brake actuator is a linear actuator that controls the ground spoilers by controlling the speed brake handle. During the repair of the speed brake actuator, it is necessary to detect the axial clearance of the speed brake actuator.

[0003] The manual has high requirements for the axial clearance accuracy of the speed brake actuator (the axial clearance is required to be less than 0.254mm). Although the original tooling has high measurement accuracy, the procurement cycle is long and the price is expensive. Therefore, new tooling needs to be made to meet the manual's test requirements for axial clearance. Utility Model Content

[0004] In view of the above situation, the utility model provides an axial clearance testing tool, which aims to solve the technical problems of long procurement cycle and high price of original tooling.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] In a first aspect, the utility model provides an axial clearance testing tool, comprising:

[0007] base;

[0008] A first positioning bracket is slidably connected to the base and is used to connect to the first ear of the speed brake actuator;

[0009] a second positioning bracket, fixedly mounted on the base and used for connecting to the second lug of the speed brake actuator;

[0010] A detection bracket is slidably connected to the base and can stay at a specified position, and is used to clamp the detection tool;

[0011] A detection tool, used for detecting the lateral movement distance of the first positioning bracket;

[0012] The detection bracket, the second positioning bracket and the first positioning bracket are located on the same straight line; the first positioning bracket and the second positioning bracket are used to limit the deflection of the first ear and the second ear in the up and down directions.

[0013] In some embodiments of the present invention, a guide rail is installed on the base, and a first sliding block is slidably connected to the guide rail.

[0014] In some embodiments of the present invention, the first positioning bracket includes:

[0015] a first positioning column;

[0016] a mounting plate, wherein the first positioning column is connected to the first slider via the mounting plate;

[0017] The first positioning pin has a first positioning section and a first threaded section connected to each other; the first connecting ear has a first connecting hole, and the first positioning section can pass through the first connecting hole; the first threaded section is threadedly connected to the top of the first positioning column.

[0018] In some embodiments of the present invention, the first positioning section is in the shape of an inverted frustum.

[0019] In some embodiments of the present invention, the second positioning bracket includes:

[0020] a second positioning column, the bottom of which is connected to the base;

[0021] The second positioning pin has a second positioning section and a second threaded section connected to each other; the second connecting ear has a second connecting hole, and the second positioning section can pass through the second connecting hole; the second threaded section is threadedly connected to the top of the second positioning column.

[0022] In some embodiments of the present invention, the second positioning section is in the shape of an inverted frustum.

[0023] In some embodiments of the present invention, the detection bracket includes:

[0024] The clamping plate has a bottom that is slidably connected to the base plate; the clamping plate is provided with a clamping gap and a deformation gap that are connected to each other, the clamping gap matches the clamping gap of the detection tool, and the setting of the deformation gap facilitates the adjustment of the size of the clamping gap;

[0025] A fastener used to connect opposite sides of a clamping gap to maintain the clamping gap at a specified size.

[0026] In some embodiments of the present invention, the bottom of the clamping plate has an extension portion, the base is provided with a stepped groove, and the extension portion can slide along the length direction of the stepped groove.

[0027] In some embodiments of the present invention, the detection tool includes a dial indicator.

[0028] In some embodiments of the present invention, a thrust meter is further provided on the left side of the first positioning bracket, and the thrust meter is used to apply rightward thrust to the first positioning bracket.

[0029] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0030] The first and second lugs are positioned respectively by the first positioning bracket and the second positioning bracket so that the first and second lugs do not deflect in the up and down directions. Then, a rightward thrust is applied to the first positioning bracket. The lateral displacement distance of the first positioning bracket is detected by a detection tool, so that the size of the axial gap between the first and second lugs can be detected.

[0031] The axial clearance test fixture provides support for the axial clearance test of the speed brake actuator. It has the advantages of simple structure, low cost, stability and reliability, and convenient measurement, solving the problems of expensive original tooling and long procurement cycle.

[0032] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 This is a structural diagram of the speed brake actuator;

[0035] Figure 2 This is a schematic diagram of the structure of the axial clearance test fixture;

[0036] Figure 3 for Figure 2 A top view of the guide rail, first slider, first positioning bracket, second positioning bracket, and detection bracket after removal;

[0037] Figure 4 Schematic diagram of the structure of the stepped trough;

[0038] Figure 5 is a structural schematic diagram of the first positioning column;

[0039] Figure 6 is a structural schematic diagram of the second positioning pin;

[0040] Figure 7 Schematic diagram of the structure of the detection bracket.

[0041] icon:

[0042] 1-speed brake actuator, 11-first ear, 12-second ear,

[0043] 2-base, 21-guide rail, 22-first slider, 23-groove, 24-step groove,

[0044] 3-first positioning bracket, 31-first positioning column, 32-connecting rod, 33-mounting plate, 34-first positioning pin, 341-first positioning section, 342-first threaded section,

[0045] 4-second positioning bracket, 41-second positioning column, 42-second positioning pin,

[0046] 5-detection bracket, 51-clamping plate, 511-clamping gap, 512-deformation gap, 513-extension part. DETAILED DESCRIPTION

[0047] In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0048] In the description of the embodiments of the present invention, it should be understood that the terms "center", "lateral", "length", "left", "right", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0050] In the embodiments of the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0051] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0052] Example

[0053] First, see Figure 1 This embodiment provides a speed brake actuator 1, comprising a first lug 11 and a second lug 12 located at the front and rear ends thereof, respectively. The first lug 11 has a first connection hole, and the second lug 12 has a second connection hole. The axial clearance accuracy is detected by detecting the change in the axial spacing between the first lug 11 and the second lug 12.

[0054] Second, see Figures 1 to 7 This embodiment provides an axial clearance test tool, including

[0055] The base 2 is in a rectangular parallelepiped shape and has a groove 23 . A guide rail 21 is installed in the groove 23 by screws, and a first slider 22 is slidably connected to the guide rail 21 .

[0056] The first positioning bracket 3 is mounted on the first slider 22 and is slidably connected to the base 2 via the first slider 22 to connect to the first lug 11 and position the first lug 11. Specifically, the first positioning bracket 3 includes a first positioning column 31, a connecting rod 32, a mounting plate 33 and a first positioning pin 34.

[0057] The first positioning post 31 is in a polygonal prism or cylindrical shape, and has a first screw hole at the center of the top of the first positioning post 31. Preferably, the first positioning post 31 is in a quadrangular prism shape.

[0058] One end of the connecting rod 32 is connected to the bottom center of the first positioning column 31 , and the other end is connected to the mounting plate 33 .

[0059] The mounting plate 33 is connected to the first sliding block 22 by screws.

[0060] The first locating pin 34 comprises a first locating section 341 and a first threaded section 342, which are connected to each other. The first locating section 341 matches and extends through the first connecting hole, while the first threaded section 342 is threadedly connected to the first screw hole. The first locating pin 34 restricts or drives the lateral movement of the first connecting ear 11. In this embodiment, the first locating section 341 is shaped like an inverted frustum to better match the size of the first connecting hole.

[0061] The second positioning bracket 4 is fixedly mounted on the base 2 and is used to connect with the second lug 12 and position the second lug 12. Specifically, the second positioning bracket 4 includes a second positioning column 41 and a second positioning pin 42.

[0062] The second positioning column 41 is in a polygonal or cylindrical shape, and has a second screw hole at the center of the top of the second positioning column 41. The bottom of the second positioning column 41 is detachably connected to the base 2 via screws. Preferably, the second positioning column 41 is in a cylindrical shape.

[0063] The second positioning pin 42 has a second positioning section and a second threaded section connected to each other. The second positioning section matches the second connecting hole and can pass through the second connecting hole. The second threaded section is threadedly connected to the second screw hole. The second positioning pin 42 restricts or drives the lateral movement of the second connecting ear 12. In this embodiment, the second positioning section is in the shape of an inverted frustum to better match the size of the second connecting hole.

[0064] The detection bracket 5 is used to clamp the detection tool. The detection bracket 5 is slidably connected to the base 2 and can stay in a specified position. The detection bracket 5, the second positioning bracket 4 and the first positioning bracket 3 are in the same straight line. Specifically, the detection bracket 5 includes a clamping plate 51 and a fastener.

[0065] The bottom of the clamping plate 51 is slidably connected to the base plate; the clamping plate 51 is provided with a connected clamping gap 511 and a deformation gap 512, the clamping gap 511 matches the clamping gap 511 of the detection tool, and the setting of the deformation gap 512 facilitates the adjustment of the size of the clamping gap 511.

[0066] The bottom of the clamping plate 51 has an extension portion 513, and the base 2 is provided with a stepped groove 24. The extension portion 513 can slide along the length direction of the stepped groove 24; the extension portion 513 is threadedly connected to a locking component (not shown in the figure), and the locking component is connected to a second slider (not shown in the figure). The second slider slides in cooperation with the stepped groove 24. Tightening the locking component increases the friction between the second slider and the stepped groove 24, which can fasten the extension portion 513 to the bottom plate to limit the movement of the detection bracket 5 and the second slider, so that the detection bracket 5 and the second slider can stay in the specified position.

[0067] The fasteners (not shown) include bolts and other components, which are used to connect the opposite sides of the clamping gap 511 so that the clamping gap 511 can be maintained at a specified size to firmly clamp the detection tool.

[0068] A detection tool, such as a micrometer (not shown in the figure), is used to detect the lateral displacement of the first positioning bracket 3 to reflect the size of the axial gap between the first connecting ear 11 and the second connecting ear 12 .

[0069] See also Figure 2When in use, first position the first ear 11 and the second ear 12 respectively through the first positioning bracket 3 and the second positioning bracket 4, so that the first ear 11 and the second ear 12 have no deflection in the up and down directions, then power the speed brake actuator 1, actuate the actuator to the full extension position (so that the axial spacing between the first ear 11 and the second ear 12 is maximized) and maintain it, then install the micrometer and other detection tools on the detection bracket 5, move the detection bracket 5, adjust the position of the micrometer, so that the pointer of the micrometer is perpendicular to and fully contacts the left side of the first positioning column 31 of the first positioning bracket 3, and then fix the detection bracket 5, reset the micrometer to zero, use the thrust gauge (not shown in the figure) set on the left side of the first positioning column 31, apply a 10-pound rightward thrust to the left side of the first positioning column 31, observe the dial indicator and read the value, and record the axial clearance value of the speed brake actuator 1.

[0070] In combination with the above content, the above-mentioned axial clearance test tooling provides support for the axial clearance test work of the speed brake actuator 1. It has the advantages of simple structure, low cost, stability and reliability (fewer components and more reliability), and convenient measurement. It solves the problems of expensive original tooling and long procurement cycle (no need to purchase original tooling).

[0071] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will appreciate that the present invention is susceptible to various modifications and variations. The embodiments and features of the embodiments of this application may be combined arbitrarily without conflict. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An axial clearance test tool, characterized in that: include: base; a first positioning bracket, slidably connected to the base and configured to connect to a first lug of the speed brake actuator; a second positioning bracket, fixedly mounted on the base and configured to connect to the second lug of the speed brake actuator; A detection bracket is slidably connected to the base and can stay at a specified position, and the detection bracket is used to clamp the detection tool; A detection tool, used for detecting the lateral movement distance of the first positioning bracket; The detection bracket, the second positioning bracket and the first positioning bracket are located on the same straight line; the first positioning bracket and the second positioning bracket are used to limit the deflection of the first ear and the second ear in the up and down directions.

2. The axial clearance test fixture according to claim 1, characterized in that: A guide rail is installed on the base, and a first sliding block is slidably connected to the guide rail.

3. The axial clearance test fixture according to claim 2, characterized in that: The first positioning bracket includes: a first positioning column; a mounting plate, wherein the first positioning column is connected to the first sliding block through the mounting plate; The first positioning pin has a first positioning section and a first threaded section connected to each other; the first connecting ear has a first connecting hole, and the first positioning section can pass through the first connecting hole; the first threaded section is threadedly connected to the top of the first positioning column.

4. The axial clearance test fixture according to claim 3, characterized in that: The first positioning section is in the shape of an inverted frustum.

5. The axial clearance testing tool according to claim 1, characterized in that: The second positioning bracket includes: a second positioning column, the bottom of which is connected to the base; The second positioning pin has a second positioning section and a second threaded section connected to each other; the second connecting ear has a second connecting hole, and the second positioning section can pass through the second connecting hole; the second threaded section is threadedly connected to the top of the second positioning column.

6. The axial clearance test fixture according to claim 5, characterized in that: The second positioning section is in the shape of an inverted frustum.

7. The axial clearance testing tool according to claim 1, characterized in that: The detection bracket comprises: The clamping plate has a bottom portion slidably connected to the base plate; the clamping plate is provided with a clamping gap and a deformation gap that are connected to each other, the clamping gap matches the clamping gap of the detection tool, and the setting of the deformation gap facilitates the adjustment of the size of the clamping gap; A fastener used to connect opposite sides of a clamping gap to maintain the clamping gap at a specified size.

8. The axial clearance testing tool according to claim 7, characterized in that: The bottom of the clamping plate is provided with an extension portion, the base is provided with a stepped groove, and the extension portion can slide along the length direction of the stepped groove.

9. The axial clearance testing tool according to claim 1, characterized in that: The detection tool includes a dial indicator.

10. The axial clearance testing tool according to any one of claims 1 to 9, characterized in that: It also includes a thrust meter arranged on the left side of the first positioning bracket, and the thrust meter is used to apply rightward thrust to the first positioning bracket.

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