Device and method for mounting and posture adjusting of large-scale belly equipment

Abstract

The invention belongs to the technical field of aeronautical manufacturing, and relates to a device for mounting and posture adjusting of large-scale equipment of an aircraft belly. Comprising a movable base, a power mechanism, a lifting platform, a rotary base, a posture adjusting mechanism and a side guide column. The movable base is connected with four universal wheels and can move; the power mechanism adopts a one-to-four lifting structure, namely a three-phase asynchronous motor is connected with four spiral lifters at the same time to provide electric lifting power; the lifting platform is formed by welding square steel and a steel plate and is connected with a lead screw nut, and three sections of 30-degree arc sliding rails are uniformly distributed and mounted above the lifting platform; the bottom of the rotary base is connected with the sliding rail, and the requirement for rotation degrees during hole alignment of installation equipment is met. The posture adjusting mechanism is formed by stacking a steel plate and a universal ball, the steel plate is arranged on the universal ball, and front, back, left and right position adjustment is carried out through a fixed side plate and a jacking screw; the side guide columns are linear guide rails and sliding blocks, the lifting platform is connected with the side guide columns, and the stability of the lifting process is guaranteed. The problem that the height of large equipment installed at the bottom of the structure is insufficient is solved, the segmented arc-shaped sliding rail, the universal ball bearing and the electric lifting mechanism are adopted, and the installation requirements of various kinds of equipment are met.

Description

Technical Field

[0001] The invention belongs to the field of aviation technology and aviation manufacturing technology, and relates to a device and method for installing and adjusting the posture of large equipment on the belly of an aircraft. Background Art

[0002] There is a problem of small installation space in the installation of large finished equipment at the belly of the aircraft. During installation, the large equipment needs to be placed on the installation and posture adjustment device as a whole, and then moved to the bottom of the installation structure through the overall moving mechanism on the device. Then, the upper part of various large equipment is lifted from the bottom to the inside of the body structure through the lifting mechanism of the installation and posture adjustment device. During the lifting process, the position of the equipment needs to be adjusted so that the equipment is aligned with all the threaded holes around the installation base. According to the installation requirements of large equipment at the belly of the aircraft, the present invention innovatively designs a set of multi-degree-of-freedom posture adjustment devices with translation, lifting, rotation, and pitching functions, which solves the problem of high-precision installation of large equipment at the belly of the aircraft. Summary of the invention

[0003] Technical problem solved by the invention: The invention solves the shortcomings of the existing technical means and provides a new process equipment structure. It is designed with adjustment margins in six directions: front and back, left and right, height, rotation, pitch, and roll. The electric lifting mechanism has a stable speed, reduces the difficulty of installation, and realizes the installation of large equipment in a small space.

[0004] The technical solution of the present invention:

[0005] On the one hand, the present invention provides a device for installing and adjusting the posture of large equipment on the belly of an aircraft, the device comprising: a mobile base 1, a power mechanism 2, a lifting platform 3, a rotating base 4, a posture adjustment mechanism 5, and a side guide column 6;

[0006] The power mechanism 2 is screwed and installed on the mobile base 1, and the lifting platform 3 is connected to the power mechanism 2, and is driven by the power mechanism 2 to perform lifting actions. At the same time, an arc slide rail 13 is installed on the lifting platform 3, and a rotating base 4 is installed on the arc slide rail 13. A posture adjustment mechanism 5 is installed above the rotating base 4, and side guide columns 6 are installed around the mobile base 1. The side guide columns 6 use linear guide rails 17 plus sliders to connect the lifting platform 3 and the side guide columns 6.

[0007] Furthermore,

[0008] The power mechanism 2 adopts a "one-to-four" structure, and the power mechanism 2 includes a three-phase asynchronous motor 8, four screw elevators 9, a plurality of commutators 10, a connecting rod 11, and a screw nut 12;

[0009] Four screw lifts 9 and a three-phase asynchronous motor 8 are screwed on the mobile base 1. The three-phase asynchronous motor 8 and the four screw lifts 9 are rigidly connected by a commutator 10, a coupling and a connecting rod 11. The screw nut 12 is used for lifting. The screw nut 12 is connected to the lifting platform 3 with screws. When the screw lift 9 is working, the lifting platform 3 is driven by the nut to lift.

[0010] Furthermore,

[0011] A universal ball 14 is embedded in the bottom plate of the posture adjustment mechanism 5, and a movable steel plate 15 is placed on the universal ball 14. Screw holes are provided above the fixed side plates 16. Tightening screws pass through the screw holes to push the movable steel plate 15 to adjust the position forward, backward, left and right, and are limited by the fixed side plates 16.

[0012] Furthermore,

[0013] The arc slide rail 13 is a segmented arc slide rail.

[0014] Furthermore,

[0015] The device is further provided with adjustable height feet 18, which are arranged around the mobile base 1. The pitch and roll directions can be adjusted by adjusting the height of the adjustable height feet 18.

[0016] Furthermore,

[0017] Four universal wheels 7 are installed at the bottom of the mobile base 1 so that the mobile base 1 can move in any direction.

[0018] On the other hand, the present invention also provides a method for installing and adjusting the posture of large equipment on the belly of an aircraft, the method is implemented by using the device, and the method comprises:

[0019] S1, move the device as a whole to the installation opening under the belly of the machine, and according to the displacement requirements of the front and back, left and right on the horizontal plane, use the tightening screws on the sides of the three posture adjustment mechanisms 5 to push the moving steel plate 15, thereby driving the product placed on the device to move in the required direction;

[0020] S2, after the front-to-back and left-to-right directions are adjusted, the rotating platform 4 placed on the arc slide rail 13 is used to drive the product to rotate horizontally around the center of the product circle to meet the requirements of the corresponding positions of the product and the installation structure holes;

[0021] S3, raise the lifting platform 3 to the product installation position, check whether the installation plane is in full contact, if not, use the adjustable height feet 18 at the four corners of the equipment, use them in pairs to form the movement of the product in the pitch and roll directions, lift the device and the product as a whole, and ensure that the installation plane is in full contact.

[0022] Furthermore, before S1, the method further includes:

[0023] The product is first hoisted above the device, with the product orientation consistent with the device heading mark, aligned with the equipment outer contour engraved line on the device, and slowly placed on the posture adjustment mechanism. After the hoisting and placement is completed, use bow clamps and pads to clamp the product and the device support plate. Only after clamping can it be moved and installed.

[0024] The present invention provides a device for installing and adjusting the posture of large equipment on the belly of an aircraft, which can complete the posture adjustment, lifting and other installation requirements required for the installation process of the large equipment on the belly of an aircraft. The device adopts a segmented arc guide rail, which meets the economic requirements and the use requirements of the rotation degree. The use of a universal ball as the core component of the posture adjustment device greatly reduces the overall height and reduces the risk of interference with the installation structure. The electric one-to-four lifting mechanism runs smoothly and effectively replaces manual lifting, improves labor intensity, reduces production costs, and shortens the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the structural outline of the device;

[0026] Figure 2 It is a schematic diagram of the power mechanism;

[0027] Figure 3 This is the appearance drawing of the lifting platform;

[0028] Figure 4 The appearance and installation diagram of the posture adjustment mechanism Figure 1 ;

[0029] Figure 5 The appearance and installation diagram of the posture adjustment mechanism Figure 2 ;

[0030] Figure 6 This is the outline drawing of the mobile base and side guide pillars;

[0031] Among them: 1. Mobile base, 2. Power mechanism, 3. Lifting platform, 4. Rotating base, 5. Attitude adjustment mechanism, 6. Side guide column, 7. Universal wheel, 8. Three-phase asynchronous motor, 9. Screw lift, 10. Commutator, 11. Connecting rod, 12. Screw nut, 13. Arc slide rail, 14. Universal ball, 15. Mobile steel plate, 16. Side panel, 17. Linear guide rail, 18. Adjustable height feet, 19. Electric cabinet. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0033] The embodiment of the present invention provides a device for installing and adjusting the posture of large equipment on the belly of an aircraft, which comprises a movable base 1, a power mechanism 2, a lifting platform 3, a rotating base 4, a posture adjustment mechanism 5, and side guide columns 6.

[0034] The bottom of the mobile base 1 is equipped with four universal wheels 7 for movement in any direction. The power mechanism 2 is screwed and installed on the mobile base 1. Figure 2 As shown, a "one-to-four" structure is adopted, including a three-phase asynchronous motor 8, four screw lifts 9, a plurality of commutators 10, connecting rods 11, screw nuts 12, and an electric cabinet 19. The lifting platform 3 is connected to the screw nut 12 and is driven by the screw nut 12 to perform lifting actions. At the same time, a segmented arc slide rail 13 is installed on the lifting platform 3, as shown in FIG. Figure 3 As shown, a rotating base 4 is installed on the slide rail to meet the rotation degree requirement during installation. A posture adjustment mechanism 5 is installed above the rotating base 4. A universal ball 14 is embedded in the bottom plate of the posture adjustment mechanism. A movable steel plate 15 is placed on the universal ball. The position is limited and adjusted to the front, back, left and right positions through a fixed side plate 16 and a tightening screw. Figure 4-5 As shown, the side guide posts 6 are installed around the mobile base 1, and the lifting platform 3 is connected to the side guide posts 6 by a linear guide rail 17 and a slider to ensure the smoothness of the lifting process. The device is also provided with adjustable height feet 18, and the height can be adjusted to achieve the adjustment of the pitch and roll directions, such as Figure 6 shown.

[0035] According to the installation requirements, the finished equipment needs to be installed at the bottom of the belly structure. Figure 1 As shown, the base of the device is welded by square steel, equipped with four universal wheels 7 and four adjustable height feet 18, which can ensure the overall mobile function of the device and the stability of the lifting process after moving into place and the adjustment of the pitch and roll directions. Four screw lifts 9 and a three-phase asynchronous motor 8 are screwed on the mobile base 1. The motor and the screw lift are rigidly connected by a commutator 10, a coupling and a connecting rod 11. The lifting is performed by a screw nut 12, and the lifting height is 0-610mm. The screw nut 12 is connected to the lifting platform 3 by screws When the spiral lift is working, the nut drives the lifting platform to rise and fall. Three sections of arc slide rails 13 are installed on the lifting platform 3. Arc slide rails of different angles can be selected according to the rotation angle of the usage situation. This device uses a 30° arc slide rail. When it rises to a suitable height, the rotating base 4 on the arc guide rail can be rotated to align with the mounting hole on the body structure. This device has three posture adjustment mechanisms 5, and twelve universal balls 14 are evenly distributed inside. When aligning the holes, the posture adjustment mechanism can also be used to adjust the displacement in the front, back, left and right directions, which is convenient for overall installation.

[0036] The product is first hoisted above the device, with the product orientation consistent with the device heading mark, aligned with the equipment outer contour engraved line on the device, and slowly placed on the posture adjustment mechanism. After the hoisting and placement is completed, use bow clamps and pads to clamp the product and the device support plate. Only after clamping can it be moved and installed.

[0037] Move the entire device to the installation opening under the belly of the machine. According to the displacement requirements of the front, back, left and right on the horizontal plane, use the tightening screws on the sides of the three posture adjustment mechanisms 5 to push the moving steel plate 15, thereby driving the product placed on the tooling to move in the required direction. After the front, back, left and right adjustments are completed, the rotating platform 4 placed on the arc slide rail 13 can be used to drive the product to rotate horizontally around the center of the product to meet the corresponding requirements of the product and the installation structure hole positions. Then, the lifting platform 3 is raised to the product installation position to check whether the installation plane fits. If it does not fit completely, the feet 18 at the four corners of the equipment can be used in combination to form the movement of the product in the pitch and roll directions, and the tooling and the product can be lifted as a whole to ensure that the installation plane fits completely.

[0038] This device needs to be connected to the electric cabinet 19 with 380V AC power. The electric cabinet has four buttons, "up", "down", "stop" and "emergency stop". After turning on the leakage protection switch, you can press the "up" button and "down" button to realize the up and down movement of the lifting platform. Press the "stop" button to pause at any position. When it is necessary to switch to descending in the ascending state, you need to press the "stop" button first, and then press the "down" button to descend. The emergency stop button is suitable for controlling the power-off of the main circuit in emergency situations.

[0039] The device for installing and adjusting the posture of large equipment on the belly of a machine of the present invention comprises a movable base, a power mechanism, a lifting platform, a rotating base, a posture adjustment mechanism, and side guide columns. The movable base is connected to four universal wheels for movement; the power mechanism adopts a one-to-four lifting structure, that is, a three-phase asynchronous motor is connected to four spiral elevators at the same time to provide electric lifting power; the lifting platform is welded by square steel and steel plate, connected with a screw nut, and three sections of 30° arc slide rails are evenly distributed on the top; the bottom of the rotating base is connected to the slide rail to meet the requirements of the degree of rotation when the installation equipment is aligned with the hole; the posture adjustment mechanism is stacked by steel plates and universal balls, and the steel plates are placed on the universal balls, and the front, rear, left, and right positions are adjusted by fixed side plates and tightening screws; the side guide columns adopt linear guide rails plus sliders to connect the lifting platform with the side guide columns to ensure the stability of the lifting process. The present invention solves the difficulty of insufficient height of large equipment installed at the bottom of the structure, and adopts segmented arc slide rails, universal ball bearings and electric lifting mechanisms to meet the installation requirements of various types of equipment.

Claims

1. A device for installing and adjusting the posture of large equipment on the belly of an aircraft, characterized in that: The device comprises: a mobile base (1), a power mechanism (2), a lifting platform (3), a rotating base (4), a posture adjustment mechanism (5), and a side guide column (6); The power mechanism (2) is screwed and installed on the mobile base (1), and the lifting platform (3) is connected to the power mechanism (2) and driven by the power mechanism (2) to perform lifting and lowering actions. At the same time, an arc slide rail (13) is installed on the lifting platform (3), and a rotating base (4) is installed on the arc slide rail (13). A posture adjustment mechanism (5) is installed above the rotating base (4). The side guide column (6) is installed around the mobile base (1), and the side guide column (6) adopts a linear guide rail (17) and a slider to connect the lifting platform (3) and the side guide column (6).

2. The device for installing and adjusting the posture of large equipment on the belly of an aircraft according to claim 1, characterized in that: The power mechanism (2) adopts a "one-to-four" structure, and the power mechanism (2) comprises a three-phase asynchronous motor (8), four screw elevators (9), a plurality of commutators (10), a connecting rod (11), and a screw nut (12); Four screw elevators (9) and a three-phase asynchronous motor (8) are screwed on a mobile base (1); the three-phase asynchronous motor (8) and the four screw elevators (9) are rigidly connected by a commutator (10), a coupling and a connecting rod (11); the screw nut (12) is used for lifting; the screw nut (12) is connected to a lifting platform (3) by screws; when the screw elevator (9) is working, the nut drives the lifting platform (3) to be lifted or lowered.

3. The device for installing and adjusting the posture of large equipment on the belly of an aircraft according to claim 1, characterized in that: The bottom plate of the posture adjustment mechanism (5) is embedded with a universal ball (14), the movable steel plate (15) is placed on the universal ball (14), and screw holes are arranged above the fixed side plates (16). The tightening screws pass through the screw holes to push the movable steel plate (15) to adjust the position of the front, back, left and right, and are limited by the fixed side plates (16).

4. The device for installing and adjusting the posture of large equipment on the belly of an aircraft according to claim 1, characterized in that: The circular arc slide rail (13) is a segmented circular arc slide rail.

5. The device for installing and adjusting the posture of large equipment on the belly of an aircraft according to claim 1, characterized in that: The device is also provided with adjustable height feet (18), which are arranged around the mobile base (1). The pitch and roll directions can be adjusted by adjusting the height of the adjustable height feet (18).

6. The device for installing and adjusting the posture of large equipment on the belly of an aircraft according to claim 1, characterized in that: Four universal wheels (7) are installed at the bottom of the mobile base (1) so that the mobile base (1) can move in any direction.

7. A method for installing and adjusting the posture of large equipment on the belly of an aircraft, characterized in that: The method is implemented by using a device as described in any one of claims 1 to 6, and the method comprises: S1, move the entire device to the installation opening below the belly of the machine, and according to the displacement requirements in the horizontal plane, use the tightening screws on the sides of the three posture adjustment mechanisms (5) to push the moving steel plate (15), thereby driving the product placed on the device to move in the required direction; S2, after the front-to-back and left-to-right directions are adjusted, the rotating platform (4) placed on the arc slide rail (13) is used to drive the product to rotate horizontally around the center of the product circle to meet the requirements of the corresponding positions of the product and the installation structure holes; S3, raise the lifting platform (3) to the product installation position, check whether the installation plane is in full contact, if not, use the adjustable height feet (18) at the four corners of the device, use them in pairs to form the product's pitch and roll movement, lift the device and the product as a whole, and ensure that the installation plane is in full contact.

8. The method for installing and adjusting the posture of large equipment on the belly of an aircraft according to claim 7, characterized in that: Before S1, the method further includes: The product is first hoisted above the device, with the product orientation consistent with the device heading mark, aligned with the equipment outer contour engraved line on the device, and slowly placed on the posture adjustment mechanism. After the hoisting and placement is completed, use bow clamps and pads to clamp the product and the device support plate. Only after clamping can it be moved and installed.

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