Device for measuring opening and closing functions of reverse-pushing choke door

Abstract

The invention provides a reverse thrust choke door opening and closing function measuring device, and belongs to the technical field of aero-engine reverse thrust assembly, and the device specifically comprises a connecting plate which is slidably installed on a support, and the connecting plate is provided with a first installation seat and a second installation seat. The first mounting seat and the second mounting seat are respectively used for mounting a left front hinge support and a right front hinge support of the choke door; the bottom end of the supporting cross beam is fixed to the support, a hanging structure is arranged on the supporting cross beam, and the hanging structure is used for being connected with the end, away from the flow blocking door, of a pull rod on the flow blocking door; the driving assembly is installed on the support, the output end of the driving assembly is connected with the connecting plate, and the driving assembly is used for driving the connecting plate to slide on the support in the first direction; the push-pull force sensor is used for detecting the push-pull force borne by the connecting plate when the connecting plate slides on the support. According to the treatment scheme, the assembling efficiency and the qualified rate of the reverse thrust component are improved.

Description

Technical Field

[0001] The present application relates to the field of reverse thrust assembly of aircraft engines, and in particular to a device for measuring the opening and closing function of a reverse thrust choke. Background Art

[0002] During the assembly process of aircraft engines, after the assembly of a large reverse thrust unit is completed, the choke door may engage abnormally, requiring disassembly or replacement of the choke door pull rod, which increases the troubleshooting and maintenance work of the reverse thrust equipment. Summary of the Invention

[0003] In view of this, the present application provides a reverse thrust choke opening and closing function measuring device, which solves the problems in the prior art, reduces the debugging problems and quality risks in the replacement of parts and assembly process caused by the disassembly and troubleshooting of reverse thrust components, thereby improving the assembly efficiency and qualification rate of reverse thrust components.

[0004] The present application provides a device for measuring the opening and closing function of a reverse thrust choke door, which adopts the following technical solutions:

[0005] A device for measuring the opening and closing function of a reverse thrust choke, comprising:

[0006] Bracket;

[0007] A connecting plate is slidably mounted on the bracket, wherein a first mounting seat and a second mounting seat are provided on the connecting plate, wherein the first mounting seat and the second mounting seat are respectively used to mount a left front hinge support and a right front hinge support of the blocker door;

[0008] A supporting crossbeam, wherein the bottom end of the supporting crossbeam is fixed to the bracket, and a hanging structure is provided on the supporting crossbeam, and the hanging structure is used to connect the end of the pull rod on the blocking door away from the blocking door;

[0009] A drive assembly is mounted on the bracket, and an output end of the drive assembly is connected to the connecting plate, and the drive assembly is used to drive the connecting plate to slide along a first direction on the bracket;

[0010] The push-pull force sensor is used to detect the push-pull force applied to the connecting plate when it slides on the bracket.

[0011] Optionally, a first auxiliary support block and a second auxiliary support block are provided on the connecting plate, and the first auxiliary support block and the second auxiliary support block are used to support a limiter support on the blocker door.

[0012] Optionally, the first auxiliary support block and the second auxiliary support block are detachably mounted on the connecting plate by bolts, and the bolts are threadedly connected to the connecting plate.

[0013] Optionally, a socket is provided on the connecting plate, a slot corresponding to the socket is provided on the bracket, a pin passing through the socket is detachably provided in the slot, and when the pin passes through the socket and is inserted into the slot, the connecting plate is located at an initial position.

[0014] Optionally, the bracket is provided with a guide rail arranged along the first direction, the guide rail is provided with a sliding slide, the connecting plate is slidably installed on the guide rail, the connecting plate is provided with a through hole, the slide is provided with a push block passing through the through hole, push-pull force sensors are provided on opposite sides of the push block, the slide is connected to the output shaft of the drive assembly, and the push block transmits the power from the drive assembly to the connecting plate through the detection end of the push-pull force sensor.

[0015] Optionally, the bracket is provided with a first scale line and a second scale line spaced apart, and the slide seat or connecting plate is provided with a marking line. When the connecting plate is in the initial position, the marking line is aligned with the first scale line, and when the connecting plate is in the end position, the marking line is aligned with the second scale line.

[0016] Optionally, the distance between the first score line and the second score line along the first direction is 814 mm.

[0017] Optionally, the drive assembly includes a ball screw, the screw of the ball screw is rotatably mounted on the bracket, the screw of the ball screw is arranged along a first direction, the nut of the ball screw is fixedly connected to the slide seat, and a handwheel is fixed at one end of the screw of the ball screw.

[0018] Optionally, the first mounting seat and the second mounting seat are slidably mounted on the connecting plate, and the sliding direction of the first mounting seat and the second mounting seat is perpendicular to the first direction to adapt to different distances between the left front hinge support and the right front hinge support of different air-blocking doors.

[0019] In summary, this application has the following beneficial technical effects:

[0020] In the present application, the installation method of the baffle door on the connecting plate and the supporting crossbeam simulates the connection of the baffle door on the reverse thrust component, and the connection plate is driven to slide back and forth on the bracket, and the reciprocating movement of the connection plate drives the movement of the baffle door to simulate the opening and closing process of the baffle door on the reverse thrust component, and the pulling force and thrust of the baffle door during the opening and closing process are reflected by the force applied to the connecting plate during the sliding process. By observing the opening and closing process of the baffle door and the force applied during the opening and closing process, it is analyzed whether the opening and closing of the baffle door is normal; it is predicted in advance whether the opening and closing test of the baffle door in the reverse thrust component state will be qualified, and problems and risks are put in advance, and faults are repaired and debugged in advance. In the small component state, the opening and closing failures or the pulling and thrust not meeting the requirements of the large components in the later stage are solved, and the debugging problems and quality risks in the replacement of parts and assembly process caused by disassembly and troubleshooting are reduced, thereby improving the assembly efficiency and pass rate of the reverse thrust component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in 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 any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the device for measuring the opening and closing function of the reverse-decelerating choke door in this application.

[0023] Explanation of the accompanying drawings: 1. Bracket; 11. Support beam; 12. Connecting plate; 13. Slide; 14. Marking line; 15. First scale line; 16. Second scale line; 2. Handwheel; 3. Latch; 4. Guide rail; 5. First mounting seat; 51. Second mounting seat; 6. Suspension structure; 7. First auxiliary support block; 71. Second auxiliary support block; 8. Ball screw; 9. Adjusting nut; 91. First abutment surface; 92. Second abutment surface; 10. Push-pull force sensor. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0026] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0028] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details.

[0029] An embodiment of the present application provides a device for measuring the opening and closing function of a reverse thrust choke.

[0030] like Figure 1 As shown, a reverse thrust choke door opening and closing function measurement device includes:

[0031] Bracket 1 serves as the base of the entire measuring device.

[0032] Connecting plate 12 is slidably mounted on bracket 1 and is provided with a first mounting seat 5 and a second mounting seat 51, which are used to mount the left and right front hinge supports of the blocker door, respectively. The first mounting seat 5 is pivotally hinged to the left front hinge support, while the second mounting seat 51 is hinged to the right front hinge support.

[0033] A support beam 11, the bottom end of which is fixed to the bracket 1, and a hanging structure 6 is provided on the support beam 11, and the hanging structure 6 is used to connect the end of the pull rod on the choke door away from the choke door;

[0034] The driving assembly is mounted on the bracket 1 , and the output end of the driving assembly is connected to the connecting plate 12 . The driving assembly is used to drive the connecting plate 12 to slide along a first direction on the bracket 1 .

[0035] The push-pull force sensor 10 is used to detect the push-pull force applied to the connecting plate 12 when it slides on the bracket 1 .

[0036] In the present application, the installation method of the baffle door on the connecting plate 12 and the supporting crossbeam 11 simulates the connection of the baffle door on the reverse thrust component, and the connecting plate 12 is driven to slide back and forth on the bracket 1, and the reciprocating movement of the connecting plate 12 drives the movement of the baffle door to simulate the opening and closing process of the baffle door on the reverse thrust component, and the pulling force and pushing force of the baffle door during the opening and closing process of the baffle door are reflected by the force applied to the connecting plate 12 during the sliding process, and whether the opening and closing of the baffle door is normal is analyzed by observing the opening and closing process of the baffle door and the force applied during the opening and closing process; it is predicted in advance whether the opening and closing test of the baffle door in the reverse thrust component state can be qualified, and problems and risks are put in advance, and faults are repaired and debugged in advance, and the opening and closing failures or pulling and thrust forces that may occur in large components in the later stage are solved in the small component state, and the debugging problems and quality risks in the replacement of parts and assembly process caused by disassembly and troubleshooting are reduced, thereby improving the assembly efficiency and pass rate of the reverse thrust component.

[0037] The bracket 1 is provided with a guide rail 4 arranged along a first direction, and the guide rail 4 is provided with a sliding slide 13. The connecting plate 12 is slidably installed on the guide rail 4. The connecting plate 12 is provided with a through hole, and the slide 13 is provided with a push block passing through the through hole. Push-pull force sensors 10 are provided on opposite sides of the push block. The slide 13 is connected to the output shaft of the driving assembly, and the push block transmits the power from the driving assembly to the connecting plate 12 through the detection end of the push-pull force sensor 10. The inner wall of the through hole and the side facing the detection end of one of the push-pull force sensors 10 are the first abutting surface 91, and the inner wall of the through hole and the side facing the detection end of the other push-pull force sensor 10 are the second abutting surface 92.

[0038] In the embodiment of the present application, the detection ends of the two push-pull force sensors 10 are provided with fixed screws, and the outer periphery of the fixed screws is provided with an adjusting nut 9. The length direction of the fixed screws is parallel to the first direction. One adjusting screw is located between one of the push-pull force sensors 10 and the first abutment surface 91, and the other adjusting screw is located between the other push-pull force sensor 10 and the second abutment surface 92. After the slide 13 and the sliding plate are assembled, the adjusting nut 9 is rotated so that the distance between the two adjusting nuts 9 and their respective corresponding abutment surfaces is less than or equal to 0.2 mm. Among them, the push-pull force sensor 10 adopts the model STB961, which can display the measured value and peak value in real time. The display of the push-pull force sensor 10 is customized at the front end of the connecting plate 12 to facilitate the reading of the push-pull force.

[0039] The drive assembly includes a ball screw 8, the screw of which is rotatably mounted on a bracket 1. The screw of the ball screw 8 is arranged in a first direction. The nut of the ball screw 8 is fixedly connected to a slide 13. A handwheel 2 is fixed to one end of the screw of the ball screw 8. The movement direction of the slide 13 is controlled by rotating the handwheel 2 counterclockwise and clockwise.

[0040] The first and second mounting seats 5, 51 are slidably mounted on the connecting plate 12. The sliding direction of the first and second mounting seats 5, 51 is perpendicular to the first direction to accommodate the distance between the left and right front hinge supports of different damper doors. Specifically, the connecting plate 12 is provided with two chute slots, the length of which is perpendicular to the first direction. A fixing bolt passes through one chute to mount the first mounting seat 5 on the connecting plate 12, and another fixing bolt passes through the other chute to mount the second mounting seat 51 on the connecting plate 12. The distance between the first and second mounting seats 5, 51 can be adjusted by adjusting the position of the fixing bolts in the chute slots.

[0041] The connecting plate 12 is provided with a first auxiliary support block 7 and a second auxiliary support block 71 , which are used to support a limiter support on the blocker door.

[0042] The first auxiliary support block 7 and the second auxiliary support block 71 are detachably mounted on the connecting plate 12 by bolts, and the bolts are threadedly connected to the connecting plate 12. The detachable nature of the first auxiliary support block 7 and the second auxiliary support block 71 facilitates replacement of first auxiliary support blocks 7 and second auxiliary support blocks 71 of different shapes to accommodate the different surface shapes of the stopper supports of different flow control doors. By rotating the bolts relative to the connecting plate 12, the heights of the first auxiliary support block 7 and the second auxiliary support block 71 can be adjusted to accommodate the different heights of the stopper supports of different flow control doors. The bolts pass through the connecting plate 12 from the bottom of the connecting plate 12 and then connect the first auxiliary support block 7 and the second auxiliary support block 71.

[0043] The bracket 1 is provided with a first and second engraved lines 15 and 16 spaced apart. The slide 13 or the connecting plate 12 is provided with a marking line 14. When the connecting plate 12 is in the initial position, the marking line 14 is aligned with the first engraved line 15. When the connecting plate 12 is in the final position, the marking line 14 is aligned with the second engraved line 16. The distance between the first engraved line 15 and the second engraved line 16 along the first direction is 814 mm.

[0044] The movement distance of the connecting plate 12 is precisely controlled by means of engraved and marked lines 14 .

[0045] The connecting plate 12 is provided with a socket, and the bracket 1 is provided with a slot corresponding to the socket. A removable latch 3 is disposed within the slot, which passes through the socket. When the latch 3 passes through the socket and is inserted into the slot, the connecting plate 12 is in its initial position. A drive mechanism controls the movement of the connecting plate 12 until the latch 3 is aligned with the socket. The latch 3 is then inserted, and the initial position of the connecting plate 12 is determined by the latch 3. Once the initial position of the connecting plate 12 is determined, the latch 3 is removed, and the drive mechanism is activated, driving the connecting plate 12 to its final position. The slot gradually expands from bottom to top to facilitate insertion of the latch 3.

[0046] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A device for measuring the opening and closing function of a reverse thrust choke, characterized in that: include: Bracket (1); A connecting plate (12) is slidably mounted on the bracket (1), wherein a first mounting seat (5) and a second mounting seat (51) are provided on the connecting plate (12), wherein the first mounting seat (5) and the second mounting seat (51) are respectively used for mounting a left front hinge support and a right front hinge support of the blocker door; A supporting crossbeam (11), wherein the bottom end of the supporting crossbeam (11) is fixed on the bracket (1), and a hanging structure (6) is provided on the supporting crossbeam (11), and the hanging structure (6) is used to connect the end of the pull rod on the blocking door away from the blocking door; A drive assembly is mounted on the bracket (1), and an output end of the drive assembly is connected to the connecting plate (12), and the drive assembly is used to drive the connecting plate (12) to slide along a first direction on the bracket (1); The push-pull force sensor (10) is used to detect the push-pull force applied to the connecting plate (12) when it slides on the bracket (1).

2. The reverse thrust choke door opening and closing function measuring device according to claim 1, characterized in that: A first auxiliary support block (7) and a second auxiliary support block (71) are provided on the connecting plate (12); the first auxiliary support block (7) and the second auxiliary support block (71) are used to support a stopper support on the flow-blocking door.

3. The reverse thrust choke door opening and closing function measuring device according to claim 2, characterized in that: The first auxiliary support block (7) and the second auxiliary support block (71) are detachably mounted on the connecting plate (12) by means of bolts, and the bolts and the connecting plate (12) are threadedly connected.

4. The reverse thrust choke door opening and closing function measuring device according to claim 1, characterized in that: The connecting plate (12) is provided with a socket, the bracket (1) is provided with a slot corresponding to the socket, and a plug (3) passing through the socket is detachably provided in the slot. When the plug (3) passes through the socket and is inserted into the slot, the connecting plate (12) is located at an initial position.

5. The reverse thrust choke door opening and closing function measuring device according to claim 1, characterized in that: The bracket (1) is provided with a guide rail (4) arranged along a first direction, the guide rail (4) is provided with a sliding slide (13), the connecting plate (12) is slidably mounted on the guide rail (4), the connecting plate (12) is provided with a through hole, the slide (13) is provided with a push block passing through the through hole, push-pull force sensors (10) are provided on opposite sides of the push block, the slide (13) is connected to the output shaft of the driving component, and the push block transmits power from the driving component to the connecting plate (12) through the detection end of the push-pull force sensor (10).

6. The reverse thrust choke door opening and closing function measuring device according to claim 5, characterized in that: The bracket (1) is provided with a first scale line (15) and a second scale line (16) spaced apart, and the slide seat (13) or the connecting plate (12) is provided with a marking line (14). When the connecting plate (12) is located at an initial position, the marking line (14) is aligned with the first scale line (15); when the connecting plate (12) is located at an end position, the marking line (14) is aligned with the second scale line (16).

7. The reverse thrust blocker opening and closing function measuring device according to claim 6, characterized in that: The distance between the first score line (15) and the second score line (16) along the first direction is 814 mm.

8. The reverse thrust blocker opening and closing function measuring device according to claim 5, characterized in that: The driving assembly includes a ball screw (8), a screw of the ball screw (8) is rotatably mounted on a bracket (1), the screw of the ball screw (8) is arranged along a first direction, a nut of the ball screw (8) and a slide seat (13) are fixedly connected, and a hand wheel (2) is fixed to one end of the screw of the ball screw (8).

9. The reverse thrust blocker opening and closing function measuring device according to claim 1, characterized in that: The first mounting seat (5) and the second mounting seat (51) are slidably mounted on the connecting plate (12), and the sliding directions of the first mounting seat (5) and the second mounting seat (51) are perpendicular to the first direction, so as to adapt to different distances between the left front hinge support and the right front hinge support of different blocking doors.

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