An aircraft assembly auxiliary jib cart

Abstract

The utility model discloses an aircraft assembly auxiliary mounting frame vehicle relates to mechanical assembly auxiliary equipment technical field, the utility model discloses a scissors -type lift, lift support and bearing mechanism, the utility model provides basic lifting support through scissors -type lift, and the first motor drive first screw rotation in cooperation bearing mechanism, drives the adapter plate and moves along the first guide rail, and the second motor drive second screw rotation, drives the support plate and moves along the second guide rail, realizes the accurate regulation of auxiliary platform in two horizontal directions, through the electric push rod of support plate top four corners and the ball hinge joint cooperation of auxiliary platform, and the synchronous telescopic can realize the overall lifting of auxiliary platform, and the differential telescopic can adjust platform inclination angle, through drive mechanism control, make the device contract support column when moving let the ground contact of universal wheel convenient transfer, and the support column is extended when assembling and makes the universal wheel off the ground, and the multi -dimensional adjustment adapts to the assembly demand of different parts of aircraft, and the support is stable, and the operation is flexible.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical assembly auxiliary equipment, and in particular relates to an aircraft assembly auxiliary installation rack vehicle. Background Technology

[0002] In the aerospace manufacturing industry, aircraft assembly is a core process that is technology-intensive and requires extremely high precision, involving the positioning, docking, and fixing of numerous complex components. Aircraft components are generally large, heavy, and have diverse installation locations. During assembly, auxiliary installation trolleys are needed to support, lift, and adjust the positions of these components to ensure smooth assembly operations. As a key piece of equipment in the aerospace assembly field, the performance of auxiliary installation trolleys directly affects assembly efficiency, connection accuracy, and operational safety. They play an irreplaceable role in several critical processes, such as fuselage section docking, wing installation, and avionics equipment debugging, and are a vital support for promoting the industrialization and high-efficiency development of aerospace manufacturing.

[0003] Most aircraft assembly auxiliary installation trolleys currently on the market only have simple lifting functions, which are insufficient to meet the complex needs of modern aircraft assembly. These traditional trolleys cannot achieve precise horizontal displacement adjustment. When fine-tuning the installation position of parts is required, the entire trolley must be manually moved, which is not only laborious but also prone to positioning deviations, affecting assembly accuracy. At the same time, the fixed angle of the load-bearing platform of traditional trolleys cannot adapt to the tilting assembly requirements of different parts of the aircraft. Additional auxiliary tools such as shims are required for adjustment, which is cumbersome and lacks stability. Utility Model Content

[0004] The purpose of this utility model is to provide an aircraft assembly auxiliary installation trolley, which solves the problem that existing auxiliary installation trolleys only have simple lifting functions and the platform angle cannot be flexibly adapted.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an aircraft assembly auxiliary installation trolley, comprising a scissor lift. Lifting supports are fixedly installed at the four corners of the bottom of the scissor lift. A bearing mechanism is fixedly installed at the top of the scissor lift. The bearing mechanism includes a base plate, on which two first guide rails are fixedly installed. A transition plate is slidably installed on the two first guide rails. Two second guide rails are fixedly installed on the top of the transition plate. A support plate is slidably installed on the two second guide rails. Electric push rods are fixedly installed at the four corners of the top of the support plate. The output ends of the four electric push rods are ball-jointed with an auxiliary platform.

[0007] The present invention is further configured such that a first screw is rotatably mounted on the top of the base plate, and a first connecting plate fixedly mounted on the bottom of the adapter plate is threadedly connected to the peripheral side of the first screw.

[0008] The present invention is further configured such that a second screw is rotatably mounted on the top of the adapter plate, and a second connecting plate fixedly installed at the bottom of the support plate is threaded through the circumferential side of the second screw.

[0009] The present invention is further configured such that a first motor is fixedly installed on the top of the base plate, the output end of the first motor is fixedly connected to a first screw, and a second motor is fixedly installed on one side of the adapter plate, the output end of the second motor is fixedly connected to a second screw.

[0010] The present invention is further configured such that the lifting support includes a sleeve plate fixedly connected to the scissor lift, and a support column is slidably installed inside the sleeve plate.

[0011] The present invention is further configured such that a worm gear is rotatably installed on the top of the inner sleeve, a worm is rotatably installed on the inner side wall of the sleeve and meshing with the worm gear on its circumferential side, one end of the worm is fixedly connected to a connecting shaft that penetrates the side wall of the sleeve, and a driving mechanism is fixedly installed on the outer side of the sleeve, the output end of the driving mechanism being fixedly connected to the connecting shaft.

[0012] The present invention is further configured such that a third screw is fixedly connected to one end of the worm gear, and the third screw is threadedly connected to the support column.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model provides basic lifting functions through a scissor lift. In conjunction with the first motor driving the first screw in the load-bearing mechanism to move the adapter plate along the first guide rail, and the second motor driving the second screw to move the support plate along the second guide rail, the auxiliary platform can be precisely adjusted in two mutually perpendicular horizontal directions. At the same time, relying on the ball joint of four electric push rods with the auxiliary platform, the platform can be raised and lowered synchronously, and the tilt angle of the platform can be adjusted differently. It has multi-dimensional adjustment functions of height, horizontal position, and tilt angle, and can flexibly adapt to the assembly position and angle requirements of different parts of the aircraft fuselage, wings, avionics equipment, etc., effectively expanding the adaptability scenarios of the vehicle.

[0015] 2. This utility model uses a drive mechanism to drive the connecting shaft, worm gear, and worm wheel in a coordinated manner. The worm wheel drives the third screw to move the support column up and down along the sleeve plate. Combined with the self-locking characteristics of the worm gear transmission, the support column can be retracted to allow the casters to contact the ground for flexible transfer when the device moves. During assembly operations, the support column can be extended to remove the casters from the ground and stabilize and self-lock, preventing the device from sliding. This not only ensures the convenience of moving the vehicle but also improves the support stability and operational safety during the assembly process, solving the problem that traditional vehicle movement and stable support are difficult to balance.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the load-bearing mechanism;

[0020] Figure 3 This is a structural schematic diagram of the positioning components in the two horizontal directions of the supporting mechanism;

[0021] Figure 4 This is a cross-sectional schematic diagram of the lifting outrigger.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Scissor lift; 2. Lifting outriggers; 3. Load-bearing mechanism; 4. Base plate; 5. First guide rail; 6. Adapter plate; 7. Second guide rail; 8. Support plate; 9. Electric push rod; 10. Auxiliary platform; 11. First screw; 12. First connecting plate; 13. Second screw; 14. Second connecting plate; 15. First motor; 16. Second motor; 17. Sleeve plate; 18. Worm gear; 19. Worm; 20. Connecting shaft; 21. Drive mechanism; 22. Third screw; 23. Support column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0026] Please see Figure 1-4 This utility model is an aircraft assembly auxiliary installation trolley, including a scissor lift 1. Lifting feet 2 are fixedly installed at the four corners of the bottom of the scissor lift 1. A bearing mechanism 3 is fixedly installed at the top of the scissor lift 1. The bearing mechanism 3 includes a base plate 4. Two first guide rails 5 are fixedly installed at the top of the base plate 4. A transition plate 6 is slidably installed on the two first guide rails 5. Two second guide rails 7 are fixedly installed at the top of the transition plate 6. A support plate 8 is slidably installed on the two second guide rails 7. Electric push rods 9 are fixedly installed at the four corners of the top of the support plate 8. The output ends of the four electric push rods 9 are ball-jointed with an auxiliary platform 10.

[0027] The two first guide rails 5 provide stable sliding support for the adapter plate 6, ensuring that the adapter plate 6 does not deviate when moving horizontally. The two second guide rails 7 provide guidance and support for the horizontal movement of the support plate 8, ensuring the smoothness of the support plate 8 during movement. The four electric push rods 9 are connected to the auxiliary platform 10 by ball joints, so that the electric push rods 9 can not only synchronously extend and retract to drive the overall lifting and lowering of the auxiliary platform 10, but also adjust the tilt angle of the auxiliary platform 10 by the differentiated extension and retraction of one or more electric push rods 9 to adapt to the assembly angle requirements of different parts of the aircraft. The auxiliary platform 10 is used to directly support the parts or tools required for aircraft assembly, providing a stable placement base for assembly operations.

[0028] Specifically, a first screw 11 is rotatably mounted on the top of the base plate 4. A first connecting plate 12, fixedly mounted on the bottom of the adapter plate 6, is threaded through the side of the first screw 11. A second screw 13 is rotatably mounted on the top of the adapter plate 6. A second connecting plate 14, fixedly mounted on the bottom of the support plate 8, is threaded through the side of the second screw 13. The first screw 11 and the first connecting plate 12 constitute a threaded transmission mechanism. When the first screw 11 rotates, the threaded force is converted into linear motion of the first connecting plate 12, which in turn drives the adapter plate 6 to move directionally along the first guide rail 5. The second screw 13 and the second connecting plate 14 also constitute a threaded transmission mechanism. The rotation of the second screw 13 drives the second connecting plate 14 to drive the support plate 8 to move linearly along the second guide rail 7. Through the cooperation of the two sets of threaded transmission mechanisms, the auxiliary platform 10 can be precisely adjusted in two mutually perpendicular horizontal directions.

[0029] A first motor 15 is fixedly installed on the top of the base plate 4, and the output end of the first motor 15 is fixedly connected to the first screw 11. A second motor 16 is fixedly installed on one side of the adapter plate 6, and the output end of the second motor 16 is fixedly connected to the second screw 13. The first motor 15 provides power for the rotation of the first screw 11, and the bidirectional movement of the adapter plate 6 is realized by the forward and reverse rotation of the motor. The second motor 16 provides power for the rotation of the second screw 13, and similarly, the bidirectional precise movement of the support plate 8 can be realized. The two sets of motors are controlled independently, so that the position adjustments in the two horizontal directions do not interfere with each other, and the operation is more flexible.

[0030] Furthermore, the lifting outrigger 2 includes a sleeve plate 17 fixedly connected to the scissor lift 1, and a support column 23 is slidably installed inside the sleeve plate 17. The sleeve plate 17 provides a space for the support column 23 and a sliding guide. The support column 23 can slide up and down inside the sleeve plate 17 to realize the telescopic function of the lifting outrigger 2. When the device needs to be moved, the support column 23 retracts into the sleeve plate 17, so that the universal wheels at the bottom of the scissor lift 1 contact the ground, facilitating flexible movement of the device. When the device reaches the assembly position, the support column 23 extends out of the sleeve plate 17 and contacts the ground, providing stable support for the entire device.

[0031] A worm gear 18 is rotatably mounted on the top of the inner sleeve 17. A worm 19 is rotatably mounted on an inner side wall of the sleeve 17 and meshes with the worm gear 18. One end of the worm 19 is fixedly connected to a connecting shaft 20 that passes through the side wall of the sleeve 17. A drive mechanism 21 (consisting of a motor and a reducer) is fixedly mounted on an outer side of the sleeve 17. The output end of the drive mechanism 21 is fixedly connected to the connecting shaft 20. A third screw 22 is fixedly connected to one end of the worm gear 18 and is threadedly connected to the support column 23. The drive mechanism 21 provides power for the extension and retraction of the lifting outrigger 2. After the drive mechanism 21 is started, it drives the connecting shaft 23. When shaft 20 rotates, it transmits power to worm 19. Worm 19 and worm wheel 18 form a worm gear transmission mechanism, which has the functions of speed reduction and torque increase and self-locking. It can reduce the speed to ensure the smooth lifting and lowering of support column 23, and can also achieve self-locking after support column 23 reaches the designated position to prevent support column 23 from moving on its own. When worm wheel 18 rotates, it drives third screw 22 to rotate synchronously. The threaded connection between third screw 22 and support column 23 converts the rotation of third screw 22 into the linear lifting and lowering motion of support column 23, thereby realizing the switching of support and retraction of lifting leg 2 and ensuring that the device will not slip during assembly.

[0032] The operation process of this embodiment is as follows: When the device moves, the support column 23 retracts into the sleeve plate 17, and the universal wheels at the bottom of the scissor lift 1 contact the ground, facilitating the movement of the device to the designated assembly position; after reaching the position, the drive mechanism 21 is activated, which drives the connecting shaft 20 to rotate, the connecting shaft 20 drives the worm gear 19 to rotate, the worm gear 19 drives the worm wheel 18 to rotate, the worm wheel 18 drives the third screw 22 to rotate, and the third screw 22 drives the support column 23 to move down and make close contact with the ground, so that the universal wheels at the bottom of the scissor lift 1 gradually leave the ground, preventing the device from sliding during assembly and ensuring assembly stability; when it is necessary to adjust the horizontal position of the auxiliary platform 10, the first motor 15 is activated, and the first motor 15 drives the first When screw 11 rotates, it drives the first connecting plate 12 to move, which in turn drives the adapter plate 6 to move along the first guide rail 5, achieving a horizontal position adjustment. Then, the second motor 16 is activated, driving the second screw 13 to rotate. The second screw 13 drives the second connecting plate 14 to move, which in turn drives the support plate 8 to move along the second guide rail 7, achieving another horizontal position adjustment. When the height or tilt angle of the auxiliary platform 10 needs adjustment, the extension and retraction of the four electric push rods 9 can be controlled. Synchronous extension and retraction can achieve the overall lifting and lowering of the auxiliary platform 10, while differentiated extension and retraction can adjust the tilt angle of the auxiliary platform 10, thus adapting to the assembly needs of different parts and angles of the aircraft, improving the convenience and accuracy of assembly operations.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An aircraft assembly auxiliary installation trolley, comprising a scissor lift (1), characterized in that: The scissor lift (1) has lifting legs (2) fixedly installed at the four corners of its bottom. The scissor lift (1) has a bearing mechanism (3) fixedly installed at its top. The bearing mechanism (3) includes a base plate (4). The base plate (4) has two first guide rails (5) fixedly installed at its top. The two first guide rails (5) have a common sliding plate (6) installed on them. The transition plate (6) has two second guide rails (7) fixedly installed at its top. The two second guide rails (7) have a common sliding plate (8) installed on them. The four corners of the top of the support plate (8) have electric push rods (9) fixedly installed. The output ends of the four electric push rods (9) are ball-jointed with an auxiliary platform (10).

2. The aircraft assembly auxiliary mounting vehicle according to claim 1, characterized in that, The top of the base plate (4) is rotatably mounted with a first screw (11), and the first screw (11) is threadedly connected to a first connecting plate (12) fixedly installed at the bottom of the adapter plate (6).

3. The aircraft assembly auxiliary mounting vehicle according to claim 2, characterized in that, The top of the adapter plate (6) is rotatably mounted with a second screw (13), and the second screw (13) is threadedly connected to a second connecting plate (14) fixedly installed at the bottom of the support plate (8).

4. The aircraft assembly auxiliary mounting vehicle according to claim 3, characterized in that, A first motor (15) is fixedly installed on the top of the base plate (4). The output end of the first motor (15) is fixedly connected to the first screw (11). A second motor (16) is fixedly installed on one side of the adapter plate (6). The output end of the second motor (16) is fixedly connected to the second screw (13).

5. The aircraft assembly auxiliary mounting vehicle according to claim 4, characterized in that, The lifting support (2) includes a sleeve plate (17) fixedly connected to the scissor lift (1), and a support column (23) is slidably installed inside the sleeve plate (17).

6. The aircraft assembly auxiliary mounting vehicle according to claim 5, characterized in that, A worm gear (18) is rotatably mounted on the top of the inner sleeve (17). A worm (19) is rotatably mounted on an inner side wall of the sleeve (17) and meshes with the worm gear (18). A connecting shaft (20) that penetrates the side wall of the sleeve (17) is fixedly connected to one end of the worm (19). A drive mechanism (21) is fixedly mounted on an outer side of the sleeve (17). The output end of the drive mechanism (21) is fixedly connected to the connecting shaft (20).

7. The aircraft assembly auxiliary mounting vehicle according to claim 6, characterized in that, One end of the worm gear (18) is fixedly connected to a third screw (22), and the third screw (22) is threadedly connected to the support column (23).

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