Auxiliary hoisting device for free overturning, rotating and translation of aircraft landing gear

Abstract

The utility model provides a free overturning, rotating and translation auxiliary hoisting device for an aircraft landing gear, and relates to the technical field of automatic manual auxiliary assembly. The device comprises a movable base, the left end of the movable base is provided with a rotating stand column, the top end of the rotating stand column is provided with a translation structure, the lower end of the translation structure is provided with a revolving bed structure, and the lower end of the revolving bed is connected with an undercarriage overturning structure through a lifting device. And an undercarriage three-point clamping tool is arranged at the side end of the undercarriage turnover mechanism. The heavy-load workpiece lifting device replaces manual work to repeatedly lift workpieces, so that different posture change requirements of disassembly and assembly of heavy-load workpieces are met, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automated manual auxiliary assembly, in particular to a free flipping, rotating and translating auxiliary hoisting device for an aircraft landing gear. Background Art

[0002] At present, in the aircraft landing gear disassembly and assembly industry, the landing gear body needs to be hoisted in different postures to meet different disassembly and assembly needs. In the process of changing the body to vertical, horizontal, inclined and other postures, multiple manual hoisting is required and there is a problem of unstable hoisting. The disassembly and assembly of the workpiece also occupies a large space. Due to the space limitations of the working area, many disassembly and assembly tasks are very cumbersome, and more than 5 people are required to carry out related work at the same time, resulting in low work efficiency. Utility Model Content

[0003] In view of the shortcomings existing in the above problems, the utility model provides an aircraft landing gear free flipping, rotating and translating auxiliary lifting device, which replaces manual repeated lifting of workpieces to achieve different disassembly and assembly posture change requirements of heavy-loaded workpieces, thereby greatly improving production efficiency.

[0004] In order to solve the above problems, the utility model provides an aircraft landing gear free flipping, rotating and translating auxiliary lifting device, comprising a movable base, wherein a rotating column is arranged at the left end of the movable base, a translation structure is arranged at the top of the rotating column, a swivel seat structure is arranged at the lower end of the translation structure, the lower end of the swivel seat is connected to the landing gear flipping structure through a lifting device, and a landing gear three-point clamping tooling is arranged at the side end of the landing gear flipping mechanism.

[0005] Preferably, a parts cleaning tank and a parts placing and soaking area are provided at the top of the movable base, and the parts cleaning tank is provided at the left end of the parts placing and soaking area.

[0006] Preferably, the translation mechanism includes a first motor, a first motor fixing seat, a first screw, a first guide rail slider and a first bearing seat. The first motor is arranged on the upper end of the first motor fixing seat. The output end of the first motor is connected to the first screw and the first guide rail slider in sequence. The first bearing seat is arranged on the first guide rail slider.

[0007] Preferably, the swivel seat structure includes a servo motor and a swivel support seat, the output end of the servo motor is connected to the swivel support seat, and the top end of the swivel support seat is connected to the bearing seat.

[0008] Preferably, the lifting device includes a second motor, a second motor fixing seat, a second lead screw, a second guide rail slider and a second bearing seat, the second motor is arranged on the upper end of the second motor fixing seat, and the output end of the second motor is connected to the second lead screw and the second guide rail slider in sequence.

[0009] Preferably, the landing gear flipping structure includes a guide rail slider, a clamp, a positioning pin, and a clamp, and the guide rail slider cooperates with the clamp to translate the positioning pin.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. After the utility model adopts a special tooling to position the workpiece, the workpiece is manually pushed and pulled, translated and locked automatically, and the workpiece itself rotates, and the workpiece is flipped and freely switched to any horizontal and vertical angles; the workpiece is manually disassembled from the vertical state before disassembly; the posture is changed to achieve arbitrary posture adjustment, and the workpiece is translated and rotated to the oil drain groove for oil drainage; after cleaning and repairing the disassembled parts, the workpiece posture is adjusted, and the workpiece is assembled again to finally complete the assembly; to meet the needs of hydraulic oil drainage, disassembly and assembly.

[0012] 2. The utility model replaces the manual repeated lifting of workpieces to achieve the posture change requirements of different disassembly and assembly of heavy-loaded workpieces, greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0014] Figure 2 It is a side view of the structure of an embodiment of the utility model;

[0015] Figure 3 It is a top view of the structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below with reference to the accompanying drawings and examples, but the examples are not intended to limit the utility model.

[0017] like Figures 1 to 3As shown, the embodiment of the utility model is composed of a movable base, a rotating, flipping, lifting and translating guide rail structure installed on the movable base, and a parts cleaning tank and a parts placement immersion area installed on the upper part of the movable base. The upper surface of the movable base is provided with a stainless steel material portion to ensure the cleanliness of the parts; a landing gear vertical fixing tool is installed on the left side of the base, which is used to fix the landing gear before and after clamping; an integral rotating column is arranged at the upper left corner of the base, and a slewing support and a servo drive mechanism are arranged at the bottom to control the overall rotation movement of the auxiliary lifting device; a translation mechanism is installed at the upper end of the rotating column, which is composed of a motor, a motor fixing seat, a screw rod, a guide rail slider, and a bearing seat, and the nut seat realizes the translation movement of the lifting part, the flipping part and the landing gear tooling through the guide rail system; a slewing seat structure is installed at the lower end of the translation mechanism, which is driven by the servo and the slewing support is driven, so that the overall rotation movement is carried out with the slewing support as the center, so that the workpiece can rotate horizontally; a lifting device is installed at the lower end of the slewing seat mechanism, which is also It is composed of a servo motor, a motor fixing seat, a lead screw, a guide rail slider, and a bearing seat, and adopts a compact sleeve design. The nut seat realizes the flipping and lifting functions of the landing gear tooling part through the guide rail system; the landing gear flipping structure is installed at the lower end of the lifting device, which is composed of a slewing support, a reducer, and a servo motor, to realize the flipping action of the landing gear from a vertical state to a horizontal state, which is convenient for manual disassembly, oil unloading, pressing, and assembly of the landing gear; the landing gear three-point clamping tooling is installed on the side of the flipping mechanism, which is composed of a guide rail slider, a clamp, a locating pin, a clamp, etc. The guide rail slider cooperates with the clamp to translate the locating pin, which is loosened before clamping. During clamping, the locating pin is inserted into the locating hole, and finally the clamp is clamped and fixed, realizing the fixed clamping function of the landing gear during the entire disassembly and assembly process.

[0018] In this embodiment, Figure 3 As shown, the overall rotating mechanism together with the translation mechanism, slewing seat structure, lifting device, flip structure, and three-point clamping fixture, cooperate with the force control system feedback and the servo motor brake of the drive system, and the overall coordination realizes the function of the landing gear from the vertical fixed position to the oil tank cleaning working area, and realizes the stop and go process, and the landing gear posture can be changed at will, which has met the needs of manual plug-in assembly.

[0019] In this embodiment, the device adopts a force control system in combination with automation to achieve various posture changes such as lifting, flipping, horizontal rotation, and translation during the landing gear plug-in assembly process.

[0020] In this embodiment, before starting the device, it is necessary to replace the clamping fixtures of different landing gear models, and to vertically place the landing gear on the lower fixing fixture. According to the needs of various types of landing gears, it is possible to choose to add a vertical fixing station for the workpiece, and it is also possible to add and adjust the placement area specifications of the disassembled landing gear parts.

[0021] In this embodiment, the landing gear is initially in a vertical state at a fixed position, and the auxiliary lifting device is manually dragged to the workpiece position, and then the landing gear through-holes and pin holes are manually used for three-point fixture clamping, and then the lower fixed fixture of the landing gear is released, and each movement axis is controlled by manual dragging or using an operating button. First, the landing gear is flipped from a vertical state to a horizontal slightly inclined state, and then the entire device is rotated while being translated to the disassembly and assembly area. During the translation process, the landing gear is kept horizontally extended to the left and right. After reaching the assembly area, the landing gear hydraulic oil is discharged to the oil receiving tank using a horizontal flip and slightly inclined posture. During the whole process, each drive shaft cooperates with the force control system to have an automatic brake function to ensure that the landing gear posture remains stable without manual pushing and control. It is convenient for disassembly and assembly work.

[0022] In this embodiment, after the landing gear is disassembled and assembled, the landing gear is horizontally rotated and translated out of the disassembly and assembly area, and then the landing gear is flipped to a vertical state to reach the workpiece fixing tooling position, and the landing gear is lifted to the fixing tooling for fixing, and then the three-point tooling is released, and the manual drag auxiliary lifting device is lifted and rotated to the outside of the fixing tooling to ship the landing gear.

[0023] In this embodiment, the towing auxiliary hoisting device is driven by a servo motor, and each axis is equipped with a force control system to feedback the force on the clamping end of the landing gear at any time, and cooperate with the servo motor to control the manual auxiliary towing of the equipment and the posture maintenance in the electronic control operation and non-control state. The equipment is set with a self-maintaining program to avoid the influence of gravity on the posture of the equipment. This greatly compensates for the unsafe problem of crane flipping and lifting in the pure manual state.

[0024] In this embodiment, the dragging auxiliary lifting device is also provided with a placement area for disassembled landing gear parts, where the parts are placed separately from workpieces that need to be soaked in oil, and a cleaning area for the disassembled parts is also provided.

[0025] In this embodiment, the aircraft landing gear free lifting device includes a base and a cantilever mechanism installed on the base, and articulated arms with various degrees of freedom; the cantilever is driven by a servo motor to drive the overall translation of the articulated arm; the articulated arm is driven by a servo motor to realize arbitrary rotation of each degree of freedom; the sensor feeds back the manual push and pull action to realize the adaptive follow-up of the articulated arm, so that the workpiece reaches the final position and posture, and the mechanism automatically maintains and locks after the manpower is withdrawn. After the workpiece is manually clamped, it is manually pushed, pulled and rotated to the required posture and angle, and then the workpiece is disassembled and assembled. Any angle and posture can be stopped at will according to actual needs. A workbench is equipped to meet the needs of cleaning, soaking and placing the workpiece during disassembly and assembly, meet the needs of classifying and placing the positions of specific parts, and set up a special tool box.

[0026] In this embodiment, the base is movable, and after translation, the foot brake is used to fix the aircraft landing gear free flip rotation translation auxiliary lifting device. When it needs to be moved, lift the foot and step on the brake to move it at will. The auxiliary lifting device is driven by a servo motor, the slewing support rotates, and the sensor feedbacks the manually applied force, so it can meet the requirements of arbitrary stopping at any angle and posture, and automatically lock and position.

[0027] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0028] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0029] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of this patent and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this patent application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this patent application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0032] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0034] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An aircraft landing gear free flipping, rotating and translating auxiliary lifting device, comprising a movable base, characterized in that: A rotating column is arranged at the left end of the movable base, a translation structure is arranged at the top of the rotating column, a swivel seat structure is arranged at the lower end of the translation structure, the lower end of the swivel seat is connected to the landing gear flipping structure through a lifting device, and a landing gear three-point clamping tool is arranged at the side end of the landing gear flipping mechanism.

2. The aircraft landing gear free flipping, rotating and translating auxiliary lifting device according to claim 1, characterized in that: A parts cleaning tank and a parts placing and soaking area are arranged on the top of the movable base, and the parts cleaning tank is arranged at the left end of the parts placing and soaking area.

3. The aircraft landing gear free flipping, rotating and translating auxiliary hoisting device according to claim 1, characterized in that: The translation structure includes a first motor, a first motor fixing seat, a first lead screw, a first guide rail slider and a first bearing seat. The first motor is arranged on the upper end of the first motor fixing seat. The output end of the first motor is connected to the first lead screw and the first guide rail slider in sequence. The first bearing seat is arranged on the first guide rail slider.

4. The aircraft landing gear free flipping, rotating and translating auxiliary hoisting device according to claim 1, characterized in that: The slewing seat structure comprises a servo motor and a slewing support seat, the output end of the servo motor is connected to the slewing support seat, and the top end of the slewing support seat is connected to the bearing seat.

5. The aircraft landing gear free flipping, rotating and translating auxiliary hoisting device according to claim 1, characterized in that: The lifting device includes a second motor, a second motor fixing seat, a second lead screw, a second guide rail slider and a second bearing seat. The second motor is arranged on the upper end of the second motor fixing seat, and the output end of the second motor is connected to the second lead screw and the second guide rail slider in sequence.

6. The aircraft landing gear free flipping, rotating and translating auxiliary hoisting device according to claim 1, characterized in that: The landing gear flipping structure comprises a guide rail slider, a clamp, a positioning pin, and a clamp, and the guide rail slider cooperates with the clamp to translate the positioning pin.

Images