Spatial position detection and measurement mechanism

Abstract

The utility model belongs to the technical field of mechanical structures, and discloses a spatial position detection and measurement mechanism, which comprises a vertical measurement mechanism, a course measurement mechanism and a transverse measurement mechanism, the vertical measuring mechanism is arranged at a lifting mechanism of the aircraft engine mounting vehicle, and is specifically arranged between the bottom of the lifting mechanism and a lifting table of the lifting mechanism; the course measuring mechanism is arranged between a sliding table and a sliding table support frame of the aircraft engine mounting vehicle, and is specifically arranged between the course position of the sliding table and the course position of the sliding table support frame; the transverse measuring mechanism is arranged between a sliding table and a sliding table support frame of the aircraft engine mounting vehicle, is specifically arranged between the course position of the sliding table and the transverse position of the sliding table support frame, and is provided with a turning structure for switching the measuring angle of the transverse measuring mechanism. The space position detecting and measuring mechanism can measure the distance between an engine and an aircraft measuring point in real time and display the distance on the operation display screen, and manual measurement is not needed.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical structure technology, and relates to a position detection and measurement mechanism for an aircraft engine mounting vehicle, specifically a spatial position detection and measurement mechanism. Background Technology

[0002] As a high-tech product, aircraft fall under the category of flight, which places high demands on the reliability of component installation. Furthermore, the clearance within the cabin is very small, and the installation of aircraft engines is particularly challenging due to the limited clearance and difficulty in observing the installation status. The engines move irregularly within the cabin, yet they must remain in the correct position throughout the installation process to prevent collisions with the aircraft fuselage. Traditionally, during engine installation, the engine is often raised a short distance for alignment, then stopped, allowing installation personnel to crawl inside the fuselage to observe and ensure the engine is in the correct position before resuming the lifting and attitude adjustment. This method is not only inefficient but also creates blind spots, making the installation process unreliable. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a spatial position detection and measurement mechanism that can measure the distance between an aircraft engine and a positioning point during installation and display the result in real time on the operating interface. This facilitates the operation of the installation vehicle by the operator and prevents the engine from hitting the aircraft during installation.

[0004] The technical solution of this utility model is as follows:

[0005] A spatial position detection and measurement mechanism includes a vertical measurement mechanism, a heading measurement mechanism, and a lateral measurement mechanism. The vertical measurement mechanism is located at the lifting mechanism of an aircraft engine mounting vehicle, specifically between the bottom of the lifting mechanism and the lifting platform of the lifting mechanism. The heading measurement mechanism is located between the slide and the slide support frame of the aircraft engine mounting vehicle, specifically between the heading position of the slide and the heading position of the slide support frame. The lateral measurement mechanism is located between the slide and the slide support frame of the aircraft engine mounting vehicle, specifically between the heading position of the slide and the lateral position of the slide support frame, and is equipped with a folding structure to switch the measurement angle of the lateral measurement mechanism.

[0006] Furthermore, the vertical measuring mechanism includes a first pull-rope sensor, the base of which is mounted on the bottom of the lifting mechanism, and the pull rope of which is connected to the top of the lifting mechanism.

[0007] Furthermore, the pull rope of the first pull rope sensor is arranged vertically.

[0008] Furthermore, the heading measurement mechanism includes a second pull-rope sensor, the base of which is mounted on the inner heading side wall of the slide support frame, and the pull rope of which is connected to the outer heading side of the slide.

[0009] Furthermore, the second pull rope sensor is arranged horizontally in the pull rope direction.

[0010] Furthermore, the folding structure is a guide pulley, and the lateral measuring mechanism includes a third tension sensor. The base of the third tension sensor is installed on the lateral inner wall of the slide support frame, and the pull rope of the third tension sensor is connected to the yaw outer side of the slide. The guide pulley is located on the slide support frame, and the pull rope of the third tension sensor passes around the guide pulley.

[0011] Furthermore, the pull rope of the third tension sensor is arranged horizontally from the guide pulley to the base, and horizontally in the heading direction from the guide pulley to the pull rope connector.

[0012] Furthermore, it also includes a main control display, which is connected to the vertical measuring mechanism, the heading measuring mechanism, and the lateral measuring mechanism, and displays the degrees of each of the three measuring mechanisms.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a spatial position detection and measurement mechanism, which is divided into four parts: a vertical direction detection and measurement mechanism, a heading direction detection and measurement mechanism, a lateral direction detection and measurement mechanism, and a measurement display.

[0015] 2. When the engine installation vehicle is loading and unloading aircraft engines, the space detection and measurement mechanism can measure the distance between the engine and the aircraft measurement point in real time and display it on the operation display screen without the need for manual measurement. This not only solves the problem of distance measurement during aircraft engine installation, but also reduces the difficulty of operation, improves the efficiency of aircraft engine installation, speeds up production efficiency, and brings a more positive impact on the production and delivery of aircraft. Attached Figure Description

[0016] Figure 1 This is a diagram of the engine installation vehicle;

[0017] Figure 2 This is a schematic diagram showing the installation location of the vertical measuring mechanism;

[0018] Figure 3 This is a schematic diagram showing the installation location of the heading measurement mechanism;

[0019] Figure 4 This is a schematic diagram showing the installation location of the lateral measuring mechanism;

[0020] Among them, 1—vertical measuring mechanism, 2—heading measuring mechanism, 3—lateral measuring mechanism, and 4—guide pulley. Detailed Implementation

[0021] This section describes embodiments of the present invention, used to explain and illustrate the technical solutions of the present invention. Unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the orientation or positional relationships in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include more than one of those features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] A spatial position detection and measurement mechanism includes a vertical measurement mechanism, a heading measurement mechanism, and a lateral measurement mechanism. The vertical measurement mechanism is located at the lifting mechanism of an aircraft engine mounting vehicle, specifically between the bottom of the lifting mechanism and the lifting platform of the lifting mechanism. The heading measurement mechanism is located between the slide and the slide support frame of the aircraft engine mounting vehicle, specifically between the heading position of the slide and the heading position of the slide support frame. The lateral measurement mechanism is located between the slide and the slide support frame of the aircraft engine mounting vehicle, specifically between the heading position of the slide and the lateral position of the slide support frame, and is equipped with a folding structure to switch the measurement angle of the lateral measurement mechanism.

[0026] The vertical measuring mechanism includes a first pull-rope sensor, the base of which is mounted on the bottom of the lifting mechanism, and the pull rope of which is connected to the top of the lifting mechanism.

[0027] The pull rope of the first pull rope sensor is arranged vertically.

[0028] The heading measurement mechanism includes a second pull-rope sensor. The base of the second pull-rope sensor is mounted on the inner side wall of the heading of the slide support frame, and the pull rope of the second pull-rope sensor is connected to the outer side of the heading of the slide.

[0029] The second pull-rope sensor is arranged horizontally along its pull-rope direction.

[0030] The folding structure is a guide pulley, and the transverse measuring mechanism includes a third tension sensor. The base of the third tension sensor is installed on the transverse inner side wall of the slide support frame. The pull rope of the third tension sensor is connected to the yaw outer side of the slide. The guide pulley is located on the slide support frame, and the pull rope of the third tension sensor passes around the guide pulley.

[0031] The pull rope of the third tension sensor is arranged horizontally from the guide pulley to the base, and horizontally in the direction from the guide pulley to the pull rope connector.

[0032] Example 2:

[0033] 1. Vertical Direction Detection and Measurement Mechanism. The lifting mechanism is a device that raises the engine to a suitable position. Considering the actual usage requirements, compact space constraints, and relatively high lifting height, a "cross-type" lifting mechanism is more suitable. According to the mechanics of a cross-type lifting mechanism, regardless of the angle between two hinged equal-length rods, the line connecting the two ends of the rods always remains parallel to the horizontal plane and perpendicular to the line connecting adjacent rod ends. The engine mounting vehicle lifting mechanism is designed based on this principle. This type of mechanism is low-cost, easy to use, simple in structure, and easy to manufacture, requiring fewer molds and tooling for manufacturing and assembly. This solution uses a single-stage scissor fork mechanism. Only a pull rope sensor needs to be installed at the bottom of the cross-type lifting platform. The pull rope moves with the cross-type lifting platform, allowing real-time measurement of vertical movement. Specifically, the pull rope is connected to the top of the cross-type lifting platform.

[0034] 2. Heading Direction Detection and Measurement Mechanism. The attitude adjustment platform is mainly used for precise attitude adjustment of the engine in the nacelle. After the installation vehicle carries the engine to the bottom of the aircraft and completes the lifting operation, the attitude adjustment platform is needed for precise control to complete the engine installation work. During the engine installation process, in order to allow the engine to move slightly along the heading axis in the engine nacelle, a heading axis movement mechanism is required. To meet the requirements of load-bearing capacity and radial accuracy, a structure with two linear guide rails installed side by side is adopted, and the heading axis uses a small pitch (P=2mm) ladder.

[0035] Driven by a lead screw, the heading mechanism can be operated manually by the operator rotating the heading axis handle, or via a PLC touchscreen interface or remote control buttons, depending on the application. In manual operation, the operator manually rotates the handwheel to move the heading slide. In remote operation, a stepper motor drives the heading slide. A pull rope sensor is mounted on the slide support frame, and the pull rope is mounted on the slide. When the slide is working, the pull rope is moved to measure the heading direction in real time.

[0036] 3. Lateral Direction Detection and Measurement Mechanism. The lateral direction detection and measurement mechanism is similar to the heading direction detection and measurement mechanism. It uses a structure with two linear guide rails installed side-by-side. The heading direction is driven by a small-pitch (P=2mm) trapezoidal lead screw. The lateral power is operated manually by the operator rotating the lateral axis handle, or via a PLC touchscreen interface or remote control buttons, depending on the usage. The pull rope sensor is mounted on the slide table support frame. After passing through a guide pulley, the end of the pull rope is mounted on the slide table. When the slide table is working, it drives the pull rope to measure the lateral movement in real time. The guide pulley is fixed to the slide table support frame. The pull rope of the pull rope sensor is rotated 90° before connecting to the slide table.

[0037] 4. Measurement and Display. Due to the small clearance within the engine bay during installation, observation of the engine can be difficult in some situations. To facilitate obtaining the engine's position within the engine bay, it is necessary to measure and display the heading, lateral, and vertical displacement. A wire displacement sensor is used to detect the heading, lateral, and vertical displacement data. The sensor measures the displacement of the corresponding axis, and the measured distances in these directions are displayed in real-time on the main control display. This sensor is an absolute sensor; the current data is not lost after each power-on or restart, so there is no need to reset or return to zero, making it easy to use and install. The displacement amounts in the heading, lateral, and vertical directions are detected by the wire displacement sensor, calculated by the PLC, and displayed on the main control display for operator observation.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should be covered within the protection scope of this utility model.

Claims

1. A spatial position detection and measurement mechanism, characterized in that, It includes a vertical measuring mechanism (1), a heading measuring mechanism (2), and a lateral measuring mechanism (3); the vertical measuring mechanism is located at the lifting mechanism of the aircraft engine mounting vehicle, specifically between the bottom of the lifting mechanism and the lifting platform of the lifting mechanism; the heading measuring mechanism is located between the slide and the slide support frame of the aircraft engine mounting vehicle, specifically between the heading position of the slide and the heading position of the slide support frame; the lateral measuring mechanism is located between the slide and the slide support frame of the aircraft engine mounting vehicle, specifically between the heading position of the slide and the lateral position of the slide support frame, and is equipped with a turning structure to switch the measuring angle of the lateral measuring mechanism.

2. The spatial position detection and measurement mechanism according to claim 1, characterized in that, The vertical measuring mechanism includes a first pull-rope sensor, the base of which is mounted on the bottom of the lifting mechanism, and the pull rope of which is connected to the top of the lifting mechanism.

3. The spatial position detection and measurement mechanism according to claim 2, characterized in that, The pull rope of the first pull rope sensor is arranged vertically.

4. The spatial position detection and measurement mechanism according to claim 1, characterized in that, The heading measurement mechanism includes a second pull-rope sensor. The base of the second pull-rope sensor is mounted on the inner side wall of the heading of the slide support frame, and the pull rope of the second pull-rope sensor is connected to the outer side of the heading of the slide.

5. A spatial position detection and measurement mechanism according to claim 4, characterized in that, The second pull-rope sensor is arranged horizontally along its pull-rope direction.

6. The spatial position detection and measurement mechanism according to claim 1, characterized in that, The folding structure is a guide pulley (4), and the transverse measuring mechanism includes a third tension sensor. The base of the third tension sensor is installed on the transverse inner wall of the slide support frame. The pull rope of the third tension sensor is connected to the yaw outer side of the slide. The guide pulley is set on the slide support frame, and the pull rope of the third tension sensor passes around the guide pulley.

7. A spatial position detection and measurement mechanism according to claim 6, characterized in that, The pull rope of the third tension sensor is arranged horizontally from the guide pulley to the base, and horizontally in the direction from the guide pulley to the pull rope connector.

8. The spatial position detection and measurement mechanism according to claim 1, characterized in that, It also includes a main control display, which is connected to the vertical measuring mechanism, the heading measuring mechanism and the lateral measuring mechanism, and displays the degrees of each of the three measuring mechanisms.

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