CN110901947B - Multi-dimensional attitude adjusting platform for loading and maintaining airplane ground - Google Patents
Multi-dimensional attitude adjusting platform for loading and maintaining airplane ground Download PDFInfo
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- CN110901947B CN110901947B CN201911157750.9A CN201911157750A CN110901947B CN 110901947 B CN110901947 B CN 110901947B CN 201911157750 A CN201911157750 A CN 201911157750A CN 110901947 B CN110901947 B CN 110901947B
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- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/40—Maintaining or repairing aircraft
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Abstract
The invention discloses a multi-dimensional attitude adjusting platform for airplane ground loading and maintenance, and aims to provide an attitude adjusting platform which is convenient to operate and high in working efficiency and can guide mounting parts to accurately feed. The invention is realized by the following technologies: the multi-dimensional adjusting platform comprises a front fixed fulcrum and a rear movable fulcrum of the multi-dimensional adjusting platform, wherein the front fixed fulcrum and the rear movable fulcrum are hinged with a rear fulcrum of a fork frame, the multi-dimensional adjusting platform is translated along the Z direction through a cross lifting adjusting mechanism, the lifting movement of the multi-dimensional adjusting platform is realized, the Y direction translation of primary longitudinal movement adjustment is realized along a primary slide rail of a primary longitudinal adjusting mechanism through a screw rod connected with a primary adjusting handwheel with a wide edge, and the Y direction translation of secondary longitudinal movement adjustment is realized by a pulley assembly along a guide rail of a secondary longitudinal adjusting mechanism; the transverse adjusting mechanism moves along the assembled inner sliding rail to realize X-direction translation of transverse and course adjustment; the direction fine adjustment mechanism changes the heights of the front bearing fulcrum and the rear bearing fulcrum of the secondary bearing frame through the proportional connecting rod supporting mechanism to realize pitching adjustment, rolling adjustment and Z-direction height fine adjustment.
Description
Technical Field
The invention relates to a movable multi-dimensional attitude adjusting platform of airplane ground support equipment, which is mainly used for loading and maintaining airplane components and provides support for maintainability inspection, assembly and disassembly of engines and wings.
Background
The aircraft engine is a core power component of an aircraft, consists of a large number of parts, repeatedly works for a long time in the environment of high temperature, high pressure, high rotating speed and high load, and once an accident fault occurs, the aircraft engine can be seriously influenced. After a period of use, the aircraft engine is usually disassembled from the aircraft, subjected to routine inspection and maintenance work, and then reinstalled into the engine mounting compartment. At present, the test run of an aircraft engine is an important method for checking and judging whether the aircraft engine works well, and usually the test run of the aircraft engine is carried out before installation and after the aircraft engine works for a period of time. Therefore, the aircraft engine is frequently required to be disassembled and assembled, and the loading and unloading quality of the aircraft engine directly influences the power performance of the aircraft engine. At present, the installation of an aircraft engine generally faces the following difficulties: (1) the aeroengine has large mass and large overall dimension, and a large support frame with large bearing capacity is required to meet the installation requirement of the aeroengine. (2) The external structure of an aircraft engine is usually similar to a large irregular shaft part, and the external pipelines are numerous. The diameter of the fan reaches 3m, and a plurality of irregular pipelines are distributed outside the fan. Therefore, when the aircraft engine is installed, the irregularly distributed pipelines must be protected, and the pipelines are prevented from being extruded and damaged, so that the working performance of the aircraft engine is affected. (3) The installation clearance that aeroengine reserved is often less, and the inner structure of engine installation cabin is very complicated moreover. In addition, some important parts are also installed in the aircraft engine installation cabin, so that the overall aircraft has a more compact appearance structure and better performance. Therefore, when the aircraft engine is installed, the problems of small installation clearance and complex installation cabin structure are simultaneously faced, and the travel path for installing the engine is further complicated. Aircraft engines are the core power components of aircraft that require frequent handling, inspection and maintenance. However, the aircraft engine has the installation difficulties of large volume, heavy weight, complex structure, small installation clearance and the like, so that the aircraft engine is difficult to realize accurate attitude adjustment and positioning during the loading and unloading, and the loading and unloading quality of the aircraft engine has important influence on the power performance of the aircraft. At present, manually operated mechanical equipment is generally adopted for aeroengine installation operation in China, so that the installation efficiency is low, and the installation precision is difficult to guarantee. In order to solve the problems of low installation precision, low installation efficiency and the like in the traditional installation of an aero-engine, the installation equipment is difficult to accurately push the aero-engine into an engine installation cabin due to the installation difficulty generated by the structure and the quality of the aero-engine in the existing installation process of the aero-engine. Aiming at the current installation situation of an aircraft engine, the defects of the traditional installation process and the problems of related installation equipment exist. In order to solve the problems of the traditional installation process of the aero-engine and the design difficulty of the numerical control aero-engine installing frame vehicle, the functional requirements of the numerical control aero-engine installing frame vehicle are provided. According to the overall scheme and the functional requirements of the numerical control mounting frame vehicle for the aero-engine, the design work of the numerical control mounting platform for the aero-engine is developed. When the aircraft engine is arranged in the fuselage and at the tail of the fuselage and the engine compartment is cylindrical, the engine is pushed into the engine compartment of the aircraft through a guide rail by adopting a push type installation method, and the aircraft engine is mainly used for installing single-engine or double-engine aircraft arranged in the fuselage. As the technology of developed countries in the west is blocked, the installation work of the aeroengine in China still adopts simple mechanical devices or hydraulic devices to carry out manual installation operation. The aircraft engine mounting equipment adopted by the manual mounting method is mostly large-scale crane for mounting the engine. The mounting equipment such as a large crane adopts large hoisting to fixedly bond the aero-engine to a working platform of an engine mounting frame vehicle, a large trailer transports the engine mounting frame vehicle to a mounting site, and then manually pushes the engine mounting frame vehicle to enable the aero-engine to be initially aligned with the tail of the aircraft; before the engine is installed, the engine installation frame vehicle needs to adjust the initial postures of all directions one by one, and then the height of the engine installation cabin is adjusted through the hydraulic lifting mechanism, so that the aircraft engine is aligned with the engine installation cabin in all directions respectively; the engine mounting frame vehicle pulls the steel wire rope by shaking the hand wheel, so that the working platform performs feeding motion along the mounting rail, and the aero-engine is sent into the engine mounting cabin. If the engine and the inside of the installation cabin are extruded, the engine cannot be pushed any more, the position of the engine cabin is observed manually at multiple angles to rub and extrude, the installation posture of the engine is adjusted, and the engine continues to feed forwards. The problems of low installation precision, high labor intensity and the like of large cranes and other installation equipment for installing aero-engines are mainly solved. The bracket type mounting method is to use a mounting bracket or a trolley with lifting function and supporting function to lift the engine to the mounting position of the engine. The lifting of the engine is realized by manually operating the hydraulic actuator cylinder, and the mounting frame vehicle is suitable for mounting large and medium aircraft engines. But still has the problems of low installation efficiency, poor automation degree and the like. The push-in type mounting method is characterized in that an engine mounting vehicle with a horizontal moving function is adopted, and an electric drive chain wheel rotates to push the engine into an aircraft engine mounting cabin, so that the butt joint work of an aircraft and the engine is completed. The automatic engine mounting vehicle has strong operability, reduces the labor intensity of workers, but has the defects of narrow application range and incapability of realizing full-automatic mounting operation. In summary, the use equipment for mounting the aerial engine in China is still in the primary stage of mechanization, and the traditional mounting equipment operated manually is still commonly adopted. The mounting problems of low mounting precision, low mounting efficiency, complex operation, easy misoperation and the like mainly exist. The engine mounting frame vehicle has a manual adjustment function of multi-axis postures, and the hydraulic lifting frame supports the engine mounting cabin. The traditional installation method has the assembly problems of low installation efficiency, poor installation quality and the like, and can not meet the high-quality and high-efficiency assembly requirements of modern large and medium-sized aircraft manufacturing. The manual engine-mounted locomotive has the following defects: (1) the rigidity of the whole structure of the engine mounting frame vehicle is poor. In the installation and feeding movement with a long stroke, along with the movement of the aero-engine, the gravity center of the whole mechanism can be changed along with the movement of the aero-engine, so that the large deformation of the support frame of the frame vehicle is caused, the posture change of the aero-engine is caused, the serious influence is caused on the installation precision of the aero-engine, and even the extrusion and the damage of a pipeline on the surface of the aero-engine can be caused. (2) The self posture adjusting precision of the engine mounting frame vehicle is low. All parts of the attitude adjusting mechanisms of the engine mounting frame vehicle adopt simple manual adjusting mechanisms, the design precision is not high, and operators perform repetitive trial adjustment on the attitude of the aero-engine by depending on working experience, so that the actual mounting efficiency of the aero-engine is extremely low. (3) The engine mount truck has poor maneuverability. The engine mounting frame vehicle is not provided with a corresponding power walking device, so that before the engine is mounted, an additional trailer is needed to transport the engine mounting frame vehicle and the engine to an engine mounting site. In the actual installation process, the installation space of the actual installation site of the engine is relatively insufficient, which causes great inconvenience to the engine installation work. (4) The automation degree is low, and the operation is complex. During the engine installation process, the posture of the engine is often required to be adjusted. The posture adjustment of the engine needs a plurality of assembly personnel to operate each adjusting mechanism one by one, the operation is complex, the insufficient adjustment or the excessive adjustment is easily caused, and the labor amount of operation workers is increased. (5) The labor intensity is high, and the total labor capacity is large. In the process of installing the engine, a plurality of people push the engine installation frame vehicle to adjust the position of the frame vehicle and manually adjust the operation of each mechanism of the engine, so that the labor intensity is high. The installation of the traditional civil aircraft engine generally adopts two layout forms of wing-mounted layout civil aircraft engine installation: a wing crane layout and a tail crane layout. The two types of engine mounting modes and the wing suspension layout bring about the main problem that the air inlet of the nacelle is not easily affected by the wake flow of the fuselage or the wings, and the engine mounting under the wings brings about some complex interference. The installation of the engine can cause the dynamic failure of the wing, and can bring great influence on the stability control characteristic of the vertical tail wing; the jet flow of the engine can increase the wave resistance to interfere the pressure distribution of the wing, and can cause flow separation under severe conditions; wing flutter characteristics are more complex; in addition, the negative pressure gradient in the trailing edge region of the lower surface of the wing can also lead more easily to a breaking of the wind protection blades. The conventional adjusting platform for realizing the installation of the complex installation track of the aero-engine is heavy, large in structural size, inconvenient to move, inconvenient to adjust when an airplane part is installed and low in efficiency. When an engine and a wing are installed, the installation position needs to be accurately positioned, and the weight of an installation part is heavier, so that installation equipment is needed to assist installation, but the existing installation equipment is heavy, only a traction or manpower pushing mode is realized, the installation efficiency is low, multiple people are needed to operate and observe, visual adjustment is carried out, the installation time is not less than 30min, and quick installation cannot be carried out. If the automatic walking can be realized, and the functions of position feedback and accurate alignment can be realized, the relative position between the installation part and the machine body can be monitored in real time, manual/automatic adjustment is realized through the six-degree-of-freedom adjusting mechanism, the alignment is fast, and the installation efficiency is improved.
Disclosure of Invention
Aiming at the defects of the manual installation method for loading and maintaining parts such as an aircraft engine, a wing and the like, the invention provides a brand-new six-dimensional attitude adjusting platform which has compact structure, convenient operation and small contraction volume, can improve the working efficiency and can guide the installation parts to accurately feed in order to realize the installation operation with complex installation tracks and load and maintain the installation parts such as the engine, the wing and the like,
the above object of the present invention can be achieved by the following measures, wherein the multi-dimensional attitude adjusting platform for airplane ground loading and maintenance comprises: the assembly is at the lift every single move mechanism in the box of self-walking chassis 70 and install the vertical adjustment mechanism 10 of one-level, the vertical adjustment mechanism 20 of second grade, horizontal adjustment mechanism 30, direction fine-tuning 50 and safety cover 90 on the crisscross lift adjustment mechanism 40 mounting platform frame, its characterized in that: a front fixed fulcrum 412 and a rear movable fulcrum 411 of the multidimensional adjustment platform, which are hinged by a rear fulcrum and a front fulcrum of a fork frame 421, translate along the Z direction through a cross lifting adjustment mechanism 40 to realize the lifting movement of the multidimensional adjustment platform, the Y direction translation of the primary longitudinal movement adjustment is realized along a primary slide rail 113 of a primary longitudinal adjustment mechanism 10 through a screw 115 connected with a primary broadside adjustment hand wheel 114, a chain wheel 222, a transmission chain 223 and a secondary transmission screw 221 are connected with a secondary adjustment hand wheel 224 on the uppermost broadside, and a guide rail 212 is installed on a pulley assembly 211 along a secondary longitudinal adjustment mechanism 20 to realize the Y direction translation of the secondary longitudinal movement adjustment; the front screw mechanism 314 and the rear screw mechanism 311 positioned on the upper parts of the front moving beam 117 and the rear moving beam 111 are adjusted to drive the inner slide block 315 to enable the transverse adjusting mechanism 30 to move along the assembled inner slide rail 313, so that X-direction translation of transverse and course adjustment is realized; the mounting part is firmly supported on a supporting device 60 on the multidimensional adjusting platform, and the direction fine adjustment mechanism 50 adjusts a front proportional connecting rod supporting mechanism 510 and a rear proportional connecting rod supporting mechanism 520 through a front lifting hand wheel 511 and a rear lifting hand wheel 512, so that the front and rear proportional connecting rod supporting mechanisms slide along a front supporting guide rail 514 and a rear supporting guide rail 516, and the height of a front bearing fulcrum and a rear bearing fulcrum of a secondary bearing frame 233 is changed, and pitch adjustment, roll adjustment and Z-direction height fine adjustment are realized.
Compared with the prior art, the invention has the following beneficial effects:
compact structure and convenient operation. The invention adopts a multidimensional adjusting platform which is convenient to move and adjust and consists of a primary longitudinal adjusting mechanism 10, a secondary longitudinal adjusting mechanism 20, a transverse adjusting mechanism 30, a cross lifting adjusting mechanism 40, a direction fine adjusting mechanism 50, a supporting device 60, a self-walking chassis 70, a position detection and feedback display system 80 and a protective cover 90, the adjusting platform has compact structure and small contraction volume, and can realize the real-time feedback and display of the relative position of a part and an installation part, and the manual/automatic adjustment can be realized through a screw 115 which is connected with a wide-edge primary adjusting hand wheel 114 by a multidimensional adjusting platform which is hinged by a rear fulcrum and a front fulcrum of a cross connecting rod, and the operation is convenient.
The high working efficiency is improved. The invention realizes the translation along the Z direction by using the cross lifting adjusting mechanism 40, realizes the lifting movement of a multi-dimensional adjusting platform, realizes the Y-direction translation of two longitudinal movement adjustments by the screw 115 connected with the broadside first-stage adjusting hand wheel 114 and the chain wheel 222 and the transmission chain 223 connected with the upper broadside second-stage adjusting hand wheel 224, and the X-direction translation of the transverse and course adjustments by the transverse adjusting mechanism 30 arranged at the upper parts of the front moving beam 117 and the rear moving beam 111 along the respective installation tracks of the first-stage longitudinal adjusting mechanism 10 and the second-stage longitudinal adjusting mechanism 20. The mounting part is firmly supported on a supporting device 60 on the multi-dimensional adjusting platform, the direction fine adjustment mechanism 50 adjusts a front proportional connecting rod supporting mechanism 510 and a rear proportional connecting rod supporting mechanism 520 through a front lifting hand wheel 511 and a rear lifting hand wheel 512, and the height of a front bearing fulcrum and a rear bearing fulcrum of a secondary bearing frame 233 is changed to realize pitching adjustment, rolling adjustment and Z-direction height fine adjustment. The installation parts are guided to be fed accurately step by step, and the adjusting mechanism can greatly improve the working efficiency.
The work efficiency can be improved, and the accurate feeding of the installation component can be guided. The screw feeding mechanism is adopted to control the feeding motion of the aeroengine in the X-axis direction, and the rest main direction postures of the aeroengine are controlled; the feeding motion of the aero-engine is completed by automatically adjusting the attitude of the aero-engine according to the complex installation path of the aero-engine, and the attitude of the aero-engine is adjusted according to the position information provided by the online monitoring platform, so that the large aero-engine is accurately and quickly sent into the engine installation cabin. Meanwhile, the attitude adjusting platform adjusts the installation attitude of the aircraft engine, so that higher attitude adjusting precision can be achieved, and the position adjustment of the engine can be quickly realized; the position detection and feedback display system 80 acquires the relative positions of the mounting parts and the corresponding mounting portions through the position detection device 81, calculates the relative positions by a computer system, and automatically plans the adjustment path. The primary longitudinal adjusting mechanism 10 is fed quickly, and the position of the aircraft engine is detected by adopting an online detection platform, so that detection personnel during manual detection can be greatly reduced, the accurate positions of the aircraft engine and an installation cabin can be quickly acquired, and accurate position information is provided for numerical control installation work of the large aircraft engine, so that the installation efficiency of the aircraft engine is improved; the industrial computer is adopted to control the relevant installation equipment of the aero-engine to carry out the installation operation of the large aero-engine, the automation degree is higher, the misoperation is not easy to generate, and the labor intensity and the labor amount of workers can be greatly reduced; the problems of low installation efficiency, poor installation quality and the like caused by manual installation operation of the aero-engine can be effectively solved, and full-automatic numerical control installation operation of the aero-engine is realized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a three-dimensional schematic view of a multi-dimensional attitude adjusting platform for aircraft ground loading and maintenance according to the present invention.
Fig. 2 is a schematic view of the cross lift adjustment mechanism of fig. 1 in a retracted state.
FIG. 3 is a schematic view of the multi-dimensional adjustment stage of FIG. 1 undergoing two-stage longitudinal movement along the mounting rail under the influence of the threaded rod.
FIG. 4 is a schematic configuration diagram of a multi-dimensional attitude adjusting platform for aircraft ground loading and maintenance.
Fig. 5 is a schematic view of the construction of the two-stage longitudinal adjustment mechanism 20.
Fig. 6 is a schematic view of the back end configuration of the two-stage longitudinal adjustment mechanism 20 of fig. 5.
Fig. 7 is a schematic view of the assembly and structure of the fine adjustment mechanism 50 and the lateral adjustment mechanism 30 in fig. 1.
Fig. 8 is an exploded view of the elevation support mechanism of the fine adjustment mechanism 50 of fig. 7.
Fig. 9 is a schematic view of the configuration of the primary longitudinal adjustment mechanism 10 of fig. 1.
Fig. 10 is a schematic view of the back end construction of fig. 9.
Fig. 11 is a three-dimensional schematic view of the cross lift adjustment mechanism 40 of the multi-dimensional pose adjustment platform of fig. 1.
Fig. 12 is a schematic bottom view of the configuration of fig. 11.
In the figure: 10. a first-stage longitudinal adjusting mechanism, 20 a second-stage longitudinal adjusting mechanism, 30 a transverse adjusting mechanism, 40 a crisscross lifting adjusting mechanism, 50 a direction fine adjusting mechanism, 60 a supporting device, 70 a self-walking chassis, 80 a position detection and feedback display system, 90 a protective cover, 81 a position detection device, 111 a rear moving beam, 112 a moving component, 113 a first-stage slide rail, 114 a first-stage adjusting hand wheel, 115 a screw rod mechanism, 116 a first-stage bearing frame, 117 a front moving beam, 118 a connecting seat, 119 a moving fulcrum slide rail, 211 a pulley component, 212 a guide rail, 213 a supporting connecting rod, 221 a second-stage transmission screw rod, 222 a chain wheel, 223 a transmission chain, 224 a second-stage adjusting hand wheel, 231 a rear bearing frame, 232 a front bearing frame, 233 a second-stage bearing frame, 311 a rear screw rod mechanism, 312 a moving support plate, 313 an inner slide rail, 314 a front screw rod mechanism, 315. inner sliding block 321, movable bearing frame 322, front rotating shaft 323, pressing device 324, rear rotating shaft 411, movable supporting point 412, fixed supporting point 421, fork frame 422, oil pump motor 423, hydraulic cylinder 510, front proportional connecting rod supporting mechanism 511, front lifting hand wheel 512, rear lifting hand wheel 514, front supporting guide rail 515, front sliding block hinge point 516, rear supporting guide rail 517, rear pushing device 518, front pushing device 519, front fixed hinge point 519, rear proportional connecting rod supporting mechanism 520, rear sliding block hinge point 521, rear fixed hinge point 522, short connecting rod 523, long connecting rod 524, front support 611, rear adjustable pull rod support 612, supporting leg 711, steering wheel 712, steering wheel 713, universal wheel 714 and chassis frame.
Detailed Description
See fig. 1-3. In a preferred embodiment described below, an aircraft ground loading maintenance multi-dimensional attitude adjustment platform. The method comprises the following steps: a cross lifting adjusting mechanism 40 assembled in the self-walking chassis 70 box body, and a primary longitudinal adjusting mechanism 10, a secondary longitudinal adjusting mechanism 20, a transverse adjusting mechanism 30, a direction fine-tuning mechanism 50 and a protective cover 90 which are arranged on the mounting platform frame of the cross lifting adjusting mechanism 40. Referring to fig. 4 and 7, the front fixed fulcrum 412 and the rear movable fulcrum 411 of the multidimensional adjustment platform hinged by the rear fulcrum and the front fulcrum of the fork 421 realize the lifting movement of the multidimensional adjustment platform by the translation of the cross lifting adjustment mechanism 40 along the Z direction, the Y direction translation of the primary longitudinal movement adjustment is realized along the primary slide rail 113 of the primary longitudinal adjustment mechanism 10 by the screw 115 connected with the primary adjustment handwheel 114, the Y direction translation of the secondary longitudinal movement adjustment is realized by the chain wheel 222, the transmission chain 223 and the secondary transmission screw 221 connected with the secondary adjustment handwheel 224 on the uppermost part of the broadside, and the pulley assembly 211 is provided with the guide rail 212 along the secondary longitudinal adjustment mechanism 20 to realize the Y direction translation of the secondary longitudinal movement adjustment. The front screw mechanism 314 and the rear screw mechanism 311 on the upper parts of the front moving beam 117 and the rear moving beam 111 are adjusted to drive the inner slide block 315 to enable the transverse adjusting mechanism 30 to move along the assembled inner slide rail 313, so that X-direction translation of transverse and course adjustment is realized. The mounting part is firmly supported on a supporting device 60 on the multidimensional adjusting platform, and the direction fine adjustment mechanism 50 adjusts a front proportional connecting rod supporting mechanism 510 and a rear proportional connecting rod supporting mechanism 520 through a front lifting hand wheel 511 and a rear lifting hand wheel 512, so that the front and rear proportional connecting rod supporting mechanisms slide along a front supporting guide rail 514 and a rear supporting guide rail 516, and the height of a front bearing fulcrum and a rear bearing fulcrum of a secondary bearing frame 233 is changed, and pitch adjustment, roll adjustment and Z-direction height fine adjustment are realized. When the airplane is in operation, the two groups of position detection devices 81 which are positioned below the protective cover 90 and used in the position detection and feedback display system 80 are respectively installed on the installation part and the corresponding installation part of the airplane body, the multi-dimensional attitude adjusting platform enters an installation station through the self-walking chassis 70, the cross lifting adjusting mechanism 40 is lifted to the installation height, the position detection and feedback display system 80 performs data detection and calculation to obtain the relative positions of the installation part and the corresponding installation part, and an adjusting path is automatically planned. The mounting component is prevented from touching the machine body by the rapid feeding of the first-stage longitudinal adjusting mechanism 10 and the direction change in the feeding process is adjusted by the direction fine adjusting mechanism 50 and the transverse adjusting mechanism 30 in the process, and after the first-stage longitudinal adjusting mechanism 10 is fed in place, the second-stage longitudinal adjusting mechanism 20 is matched with the direction fine adjusting mechanism 50 and the transverse adjusting mechanism 30 to slowly adjust the feeding according to the position feedback information until the mounting component is fed in place.
When the aircraft airplane is in operation, two groups of position detection devices 81 in the position detection and feedback display system 80 are respectively installed on the installation part and the corresponding installation part of the airplane body, the multi-dimensional adjusting platform enters an installation station through the self-walking chassis 70, the cross lifting adjusting mechanism 40 is lifted to the installation height, and the position detection and feedback display system 80 acquires the relative positions of the installation part and the corresponding installation part through the position detection devices 81 and automatically plans an adjusting path. The mounting component is prevented from touching the machine body by the rapid feeding of the first-stage longitudinal adjusting mechanism 10 and the direction change in the feeding process is adjusted by the direction fine adjusting mechanism 50 and the transverse adjusting mechanism 30 in the process, and after the first-stage longitudinal adjusting mechanism 10 is fed in place, the second-stage longitudinal adjusting mechanism 20 is matched with the direction fine adjusting mechanism 50 and the transverse adjusting mechanism 30 to slowly adjust the feeding according to the position feedback information until the mounting component is fed in place.
See fig. 4 and 7. In the multi-dimensional posture adjusting platform, the secondary longitudinal adjusting mechanism 20 is connected and supported on the secondary bearing frame 233 on the direction fine-adjusting mechanism 50 through three groups of independent lifting supporting mechanisms (two groups of front proportional connecting rod supporting mechanisms 510 and one group of rear proportional connecting rod supporting mechanisms 520), and when the lifting supporting mechanisms generate the same lifting displacement, the whole upper part of the mechanism is lifted vertically; when the front proportional link supporting mechanism 510 and the rear proportional link supporting mechanism 520 generate different lifting displacements, pitching motion occurs; when the left front proportional link supporting mechanism 510 and the right front proportional link supporting mechanism 510 are subjected to different lifting displacements, a rolling motion occurs. The direction fine-tuning mechanism 50 is connected with two independent sliding mechanisms (composed of a sliding rail in a movable support plate 312, 313 and a movable support plate 315) arranged on the transverse adjusting mechanism 30 through a bearing frame, and similarly, when the two sliding mechanisms generate the same displacement, the whole upper part of the mechanism generates transverse translation movement; when the two sliding mechanisms displace differently, the whole upper part of the mechanism moves along the course. The lateral adjusting mechanism 30 is placed on the primary slide rail 113 on the primary longitudinal adjusting mechanism 10 through the rear moving beam 111 and the front moving beam 117, and realizes the primary longitudinal movement of the upper unit as a whole. The first-stage longitudinal adjusting mechanism 10 and the upper part of the first-stage longitudinal adjusting mechanism are supported on the self-walking chassis 70 through the cross lifting adjusting mechanism 40, so that long-distance movement and omnidirectional movement of the whole multi-dimensional adjusting platform are realized. Thus, the design of the self-propelled multi-dimensional adjusting platform is realized.
See fig. 5-6. The mounting member is supported and connected to the secondary longitudinal adjustment mechanism 20 by a front support 611 and a rear adjustable tie rod support 612. During installation, the second-stage longitudinal movement is realized through the second-stage longitudinal adjusting mechanism 20, and the second-stage longitudinal movement drives the second-stage transmission screw 221 through the second-stage adjusting hand wheel 224, the transmission chain 223 and the chain wheel 222, and pushes the support connecting rod 213 to drive the pulley assembly 211 to move along the guide rail 212, so that the installation part moves. The secondary longitudinal adjusting mechanism 20 is connected to the upper points of the front proportional link supporting mechanism 510 and the rear proportional link supporting mechanism 520 of the fine direction adjusting mechanism 50 through the front bearing seat 232, the rear bearing seat 231 and the secondary bearing frame 233, respectively.
See fig. 7-8. The direction fine adjustment movement drives the pushing devices (front pushing device 518 and rear pushing device 517) through the front lifting hand wheel 511 and the rear lifting hand wheel 512 to drive the front proportional link support mechanism 510 and the rear proportional link support mechanism 520, and converts the horizontal movement along the front support rail 514 and the rear support rail 516 into the vertical lifting movement. Taking the lifting motion of the rear proportional link support mechanism 520 as an example, the rear proportional link support mechanism 520 is mainly composed of a rear fixed hinge point 522, a rear support rail 516, a rear slider hinge point 521, a long link 524 and a short link 523. The rear proportional connecting rod supporting mechanism (520) is connected with a rear fixed hinged point 522, passes through a transverse hinged base lower part connected slide block hinged point 521, and a rear supporting guide rail (516) movably assembled in a slide way of the rear slide block hinged point 521 is connected on the movable bearing frame (321) through a bolt. The transmission process is as follows: the rear lifting hand wheel 512 drives the rear pushing device 517 to drive the rear sliding block hinge point 521 to move along the rear supporting guide rail 516, and under the action of the long connecting rod 524 and the short connecting rod 523 (the length ratio of the long connecting rod to the short connecting rod is 2: 1), the translational motion of the rear sliding block hinge point 521 is converted into the vertical motion of the fulcrum on the long connecting rod 524. At the same height, when the two front proportional connecting rod supporting mechanisms 510 and the rear proportional connecting rod supporting mechanism 520 generate the same lifting displacement, the whole upper part of the mechanism vertically lifts; when the two front proportional link support mechanisms 510 and the rear proportional link support mechanism 520 generate different lifting displacements, pitching motion occurs; when the left front proportional link support mechanism 510 and the right front proportional link support mechanism 510 perform different lifting displacements, a rolling motion occurs.
The fine direction adjustment mechanism 50 is connected to the movable carriage 321, and is supported by the lateral adjustment mechanism 30 via a front rotation shaft 322, a pressing device 323, and a rear rotation shaft 324. The transverse adjusting mechanism 30 mainly comprises a front screw mechanism 314, a rear screw mechanism 311, an inner sliding block 315, an inner sliding rail 313 and a movable support plate 312, wherein the inner sliding rail 313 is fixedly connected to the front movable beam 117 and the rear movable beam 111, and the inner sliding block 315 is fixedly connected to the movable support plate 312. The transverse movement drives the inner slide block 315 and the movable support plate 312 connected with the inner slide block to move the transverse adjusting mechanism 30 along the assembled inner slide rail 313 by adjusting the front screw rod mechanism 314 and the rear screw rod mechanism 311, when the screws extend and contract for the same length, the whole upper part of the transverse adjusting mechanism 30 is driven to transversely translate, and when the screw rods extend and contract for different lengths, the whole upper part of the transverse adjusting mechanism 30 is driven to transversely move along the course.
See fig. 9-10. The front moving beam 117 and the rear moving beam 111 of the primary longitudinal adjusting mechanism 10 are both provided with a moving assembly 112, the primary slide rail 113 is placed on the primary bearing frame 116, and the bottom of the primary bearing frame 116 is provided with a connecting seat 118 and a moving fulcrum slide rail 119 for connecting with the crisscross lifting adjusting mechanism 40. The long screw rod mechanism 115 is driven by the first-stage adjusting hand wheel 114, the front moving beam 117 and the upper part of the rear moving beam 111 are pushed to integrally move longitudinally along the first-stage sliding rail 113, and a driving motor and a manual/automatic switching device are additionally arranged due to the fact that the first-stage longitudinal movement distance is long, and therefore manual/automatic dual operation is achieved.
See fig. 11-12. The connecting base 118 and the moving fulcrum slide 119 on the primary bearing frame 116 are respectively connected with the fixed fulcrum 412 and the moving fulcrum 411 of the cross lifting adjusting mechanism 40, and are connected to the self-walking chassis 70 through the fork frame 421. During lifting movement, the oil pump motor 422 drives the hydraulic cylinder 423 to do telescopic movement, the fixed fulcrum 412 at the upper part of the fork frame 421 is fixed, the movable fulcrum 411 does translational movement along the movable fulcrum slide rail 119, the angle of the fork frame is changed to enable the lifting height to change, so that the upper part of the fork frame is driven to do lifting movement, and in order to ensure reliability, a manual pump and a manual/automatic switching device are still arranged, so that manual/automatic dual operation is realized. The self-walking chassis mainly comprises a chassis frame 714, universal wheels 713, steering wheels 712 and supporting legs 711, and walking movement in any direction is realized by controlling the steering wheels. The landing legs 711 are used for rigidly connecting the multi-dimensional posture adjusting platform with the ground during installation, so that the shaking amount during installation is reduced.
The foregoing is directed to the preferred embodiment of the present invention and it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (9)
1. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform, comprising: the assembly is in the lift every single move mechanism in self-walking chassis (70) box, and lift every single move mechanism is including installing one-level vertical adjustment mechanism (10), the vertical adjustment mechanism of second grade (20), horizontal adjustment mechanism (30), direction fine-tuning (50) and safety cover (90) on cross lift adjustment mechanism (40) mounting platform frame, its characterized in that: a front fixed fulcrum (412) and a rear movable fulcrum (411) of a multidimensional adjusting platform are hinged by a rear fulcrum and a front fulcrum of a fork frame (421), the multidimensional adjusting platform is translated along the Z direction through a cross lifting adjusting mechanism (40) to realize the lifting movement of the multidimensional adjusting platform, the Y direction translation of the primary longitudinal movement adjustment is realized along a primary slide rail (113) of a primary longitudinal adjusting mechanism (10) through a screw (115) connected with a primary adjusting handwheel (114) with a wide edge, the guide rail (212) is installed along a secondary longitudinal adjusting mechanism (20) through a secondary adjusting handwheel (224) with a wide edge at the uppermost part, a chain wheel (222), a transmission chain (223) and a secondary transmission screw (221), and the Y direction translation of the secondary longitudinal movement adjustment is realized; the inner sliding block (315) is driven by adjusting a front screw rod mechanism (314) and a rear screw rod mechanism (311) which are positioned at the upper parts of the front moving beam (117) and the rear moving beam (111), so that the transverse adjusting mechanism (30) moves along an assembled inner sliding rail (313), and the X-direction translation of transverse and course adjustment is realized; the mounting part is firmly supported on a supporting device (60) on the multidimensional adjusting platform, the direction fine adjustment mechanism (50) adjusts a front proportional connecting rod supporting mechanism (510) and a rear proportional connecting rod supporting mechanism (520) through a front lifting hand wheel (511) and a rear lifting hand wheel (512), so that the front proportional connecting rod supporting mechanism and the rear proportional connecting rod supporting mechanism slide along a front supporting guide rail (514) and a rear supporting guide rail (516), the height of a front bearing fulcrum and a rear bearing fulcrum of a secondary bearing frame (233) is changed, and pitching adjustment, rolling adjustment and Z-direction height fine adjustment are realized;
in the multi-dimensional posture adjusting platform, the secondary longitudinal adjusting mechanism (20) is connected and supported on a secondary bearing frame (233) on the direction fine adjusting mechanism (50) through three groups of independent lifting supporting mechanisms, wherein two groups of front proportional connecting rod supporting mechanisms (510) and one group of rear proportional connecting rod supporting mechanisms (520); on the same height, when the lifting support mechanism generates the same lifting displacement, the whole upper part of the mechanism vertically lifts; when the front proportional connecting rod supporting mechanism (510) and the rear proportional connecting rod supporting mechanism (520) generate different lifting displacements, pitching motion is generated; when the left front proportional connecting rod supporting mechanism (510) and the right front proportional connecting rod supporting mechanism (510) generate different lifting displacements, the rolling motion is generated.
2. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform as defined in claim 1, wherein: when the aircraft is in work, two groups of position detection devices (81) which are positioned below a protective cover (90) and used in a position detection and feedback display system (80) are respectively arranged on an installation part and a corresponding installation part of an aircraft body, a multi-dimensional adjusting platform enters an installation station through a self-walking chassis (70), a cross lifting adjusting mechanism (40) is lifted to an installation height, and the position detection and feedback display system (80) acquires the relative positions of the installation part and the corresponding installation part through the position detection devices (81) and automatically plans an adjusting path; the mounting component is prevented from touching the machine body by quickly feeding through the first-stage longitudinal adjusting mechanism (10), adjusting the direction change in the feeding process by using the direction fine adjusting mechanism (50) and the transverse adjusting mechanism (30) in the process, and after the first-stage longitudinal adjusting mechanism (10) is fed in place, slowly adjusting the feeding by the second-stage longitudinal adjusting mechanism (20) in cooperation with the direction fine adjusting mechanism (50) and the transverse adjusting mechanism (30) according to position feedback information until the mounting component is fed in place.
3. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform as defined in claim 1, wherein: the direction fine adjustment mechanism (50) is connected with two independent sliding mechanisms arranged on the transverse adjustment mechanism (30) through a bearing frame, and when the two sliding mechanisms are displaced identically, the whole upper part of the mechanism moves transversely; when the two sliding mechanisms generate different displacements, the whole upper part of the mechanism generates course motion; the transverse adjusting mechanism (30) is placed on a first-stage sliding rail (113) on the first-stage longitudinal adjusting mechanism (10) through a rear moving beam (111) and a front moving beam (117) and realizes first-stage longitudinal movement of the whole upper portion, the first-stage longitudinal adjusting mechanism (10) and the whole upper portion thereof are supported on the self-walking chassis (70) through a cross lifting adjusting mechanism (40), and long-distance movement and omnidirectional movement of the whole multi-dimensional adjusting platform are realized.
4. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform as defined in claim 1, wherein: the mounting component is supported and connected to the second-stage longitudinal adjusting mechanism (20) through the front support (611) and the rear adjustable pull rod support (612), and during mounting, second-stage longitudinal movement is achieved through the second-stage longitudinal adjusting mechanism (20), and the second-stage longitudinal movement drives the second-stage transmission screw rod (221) through the second-stage adjusting hand wheel (224), the transmission chain (223) and the chain wheel (222) and pushes the support connecting rod (213) to drive the pulley assembly (211) to move along the guide rail (212), so that the mounting component moves.
5. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform as defined in claim 1, wherein: the secondary longitudinal adjusting mechanism (20) is respectively connected with upper supporting points of a front proportional connecting rod supporting mechanism (510) and a rear proportional connecting rod supporting mechanism (520) of the direction fine adjusting mechanism (50) through a front bearing seat (232), a rear bearing seat (231) and a secondary bearing frame (233).
6. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform as defined in claim 1, wherein: the fine adjustment movement of the direction of the posture adjusting platform drives a pushing device through a front lifting hand wheel (511) and a rear lifting hand wheel (512) to drive a front proportional connecting rod supporting mechanism (510) and a rear proportional connecting rod supporting mechanism (520), and the horizontal movement along a front supporting guide rail (514) and a rear supporting guide rail (516) is converted into vertical lifting movement.
7. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform according to claim 6, wherein: the rear proportional connecting rod supporting mechanism (520) is connected with a rear fixed hinge point (522), a rear supporting guide rail (516) movably assembled in a slide way of the rear slider hinge point (521) is connected to the slider hinge point (521) at the lower part of the transverse hinged base through a bolt, a rear lifting hand wheel (512) drives a rear pushing device (517) to drive the rear slider hinge point (521) to move along the rear supporting guide rail (516), and under the action of a long connecting rod (524) and a short connecting rod (523), the translational motion of the rear slider hinge point (521) is converted into the vertical motion of a fulcrum on the long connecting rod (524); when the two front proportional connecting rod supporting mechanisms (510) and the rear proportional connecting rod supporting mechanism (520) generate the same lifting displacement at the same height, the whole upper part of the mechanism vertically lifts; when the two front proportional connecting rod supporting mechanisms (510) and the rear proportional connecting rod supporting mechanism (520) generate different lifting displacements, pitching motion is generated; when the left front proportional connecting rod supporting mechanism (510) and the right front proportional connecting rod supporting mechanism (510) generate different lifting displacements, the rolling motion is generated.
8. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform as defined in claim 1, wherein: the front moving beam (117) and the rear moving beam (111) of the first-stage longitudinal adjusting mechanism (10) are provided with moving components (112), the first-stage sliding rail (113) is arranged on the first-stage bearing frame (116), and the bottom of the first-stage bearing frame (116) is provided with a connecting seat (118) and a moving fulcrum sliding rail (119).
9. An aircraft ground loading maintenance multi-dimensional attitude adjusting platform according to claim 8, wherein: the lifting mechanism is used for being connected with a cross lifting adjusting mechanism (40), a long screw rod mechanism (10) (115) is driven by a primary adjusting hand wheel (114) and pushes the whole upper parts of a front moving beam (117) and a rear moving beam (111) to move longitudinally along a primary sliding rail (113), and a connecting seat (118) and a moving fulcrum sliding rail (119) on a primary bearing frame (116) are respectively connected with a fixed fulcrum (412) and a moving fulcrum (411) of the cross lifting adjusting mechanism (40) and are connected to a self-walking chassis (70) through a fork frame (421); during lifting movement, the oil pump motor (422) drives the hydraulic cylinder (423) to do telescopic movement, the fixed fulcrum (412) at the upper part of the fork frame (421) is fixed, the movable fulcrum (411) does translational movement along the movable fulcrum slide rail (119), and the angle of the fork frame is changed to change the lifting height, so that the whole upper part of the fork frame is driven to do lifting movement.
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| CN201911157750.9A CN110901947B (en) | 2019-11-22 | 2019-11-22 | Multi-dimensional attitude adjusting platform for loading and maintaining airplane ground |
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| CN112298600B (en) * | 2020-09-18 | 2022-05-06 | 成都飞机工业（集团）有限责任公司 | Multi-axis full-active attitude adjusting method and device for large airplane component with rotating center of gravity |
| CN112407317B (en) * | 2020-12-31 | 2022-03-18 | 南京迪沃航空技术有限公司 | Multi-angle dismounting platform for aircraft engine and working method of multi-angle dismounting platform |
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| CN114770079B (en) * | 2022-06-17 | 2022-10-18 | 四川腾盾科技有限公司 | Non-hoisting type disassembling and assembling method for medium and large unmanned aerial vehicle |
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