Three-dimensional hoisting equipment based on large-aperture optical imaging system and assembling method of three-dimensional hoisting equipment

Abstract

The invention discloses three-dimensional hoisting equipment based on a large-aperture optical imaging system and an assembling method of the three-dimensional hoisting equipment, and belongs to the technical field of hoisting of optical imaging systems. The equipment comprises a crane unit, a flexible structure unit and a rigid structure unit which are sequentially connected from top to bottom; the rigid structure unit is connected with a system supporting back plate of the large-aperture optical imaging system, and the crane unit is used for being connected with a crane device for hoisting; the traveling crane unit comprises a retractable hanging bracket, the retractable hanging bracket is provided with a plurality of retractable hanging bracket supporting petals extending out from the center, and each hanging bracket supporting petal is connected with a petal-type adapter ring through a heavy-load hanging rope; each position, connected with the heavy-load lifting rope at the lower end, of the split adapter ring is connected with a threaded lifting rod in the rigid structure unit; the system supporting back plate is provided with a plurality of side plate type hanging blocks with the number corresponding to that of the threaded hanging rods, and the side plate type hanging blocks are connected with the threaded hanging rods.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hoisting of optical imaging systems, and relates to a three-dimensional hoisting device based on a large-aperture optical imaging system and an assembling method thereof. BACKGROUND

[0002] In the field of space optical observation imaging systems, with the continuous improvement of the demand for astronomical observation, deep space exploration and high-resolution earth observation, the development of large-aperture (diameter >= 1m) and super large-aperture (diameter >= 3m) imaging cameras has become the core direction of international space optical technology development. Such cameras can significantly improve the light flux and resolution by expanding the primary mirror aperture, and are key equipment for obtaining high-precision space scientific data. However, the safe hoisting problem in the process of assembling and adjusting has always been the core technical bottleneck restricting engineering application.

[0003] The existing large-aperture imaging system hoisting scheme has significant technical defects: first, the traditional rigid hoisting structure directly connects the camera main body through an integral steel frame, and realizes bearing through multi-point bolt fastening. Although this method can ensure basic strength, rigid contact can cause hoisting stress to concentrate on the optical element support structure, causing mirror surface micro-deformation (typical value >= lambda / 20, lambda is the working wavelength), which seriously damages the wavefront accuracy of the optical system. Second, although the flexible hoisting scheme releases part of the stress through rope or hinge structure, it has poor dynamic stability and is easy to cause low-frequency oscillation (natural frequency < 5Hz) in the space microgravity environment, resulting in excessive relative position deviation of the optical elements during the assembling and adjusting process, far exceeding the allowed error of precision assembling and adjusting. Third, the existing hoisting tooling generally adopts special design, and needs to customize the lifting appliance according to different camera structures, resulting in that the weight of the tooling accounts for 15%-20% of the total weight of the camera, and the assembling process involves more than 50 adjustment points, and the time consumption of a single hoisting operation is more than 8 hours, which seriously restricts the engineering efficiency. More seriously, the existing technology lacks modular design concept, and different aperture (such as 1.5m and 3m) or different structural form (such as Cassegrain and Ritchey-Chretien) imaging systems need to develop hoisting schemes completely independently, resulting in exponential growth of research and development cost.

[0004] Therefore, it is urgent to develop a three-dimensional migration hoisting method with high-precision stress control, dynamic environment adaptability and cross-aperture universality to break through the technical barriers of the existing technical system. SUMMARY

[0005] The present application aims to solve the technical problems of large-aperture imaging camera hoisting structure design in the prior art, such as large weight, complex assembly and poor universality, and provides a three-dimensional hoisting device based on a large-aperture optical imaging system and an assembling method thereof.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: In a first aspect, the application discloses a three-dimensional hoisting equipment based on a large-aperture optical imaging system, which comprises a row hoist unit, a flexible structure unit and a rigid structure unit connected in sequence from top to bottom; the rigid structure unit is connected with a system support backboard of the large-aperture optical imaging system, and the row hoist unit is used for being connected with a row hoist device to perform hoisting. The row hoist unit comprises a retractable hanger provided with a plurality of retractable hanger branches extending from the center, each hanger branch is connected with an upper heavy load hoisting rope in the flexible structure unit, the upper end of a telescopic tight rope connector is connected with the upper heavy load hoisting rope, the lower end of the telescopic tight rope connector is connected with a split adapter ring through a lower heavy load hoisting rope; each position on the split adapter ring, where the lower heavy load hoisting rope is connected, is connected with a threaded hoisting rod in the rigid structure unit; a plurality of side plate type hoisting blocks corresponding to the number of threaded hoisting rods are arranged on the system support backboard, and the side plate type hoisting blocks are connected with the threaded hoisting rods.

[0007] Further improvements are as follows: The row hoist unit comprises a row hoist hook connected with a plurality of row hoist ropes corresponding to the hanger branches; each row hoist rope is connected with a corresponding hanger branch.

[0008] The retractable hanger comprises a hanger disc provided with a plurality of support rails corresponding to the number of hanger branches and matched in structure; a plurality of connecting holes are arranged on the two side walls of the support rails; a hanger branch connection hole is arranged at a corresponding position on the hanger branch; the hanger branch is connected to the support rail through the connecting hole and the hanger branch connection hole by a connecting piece; a connecting ring is arranged at the lower end of the support rail.

[0009] The connecting piece is a locking pin, and one end of the locking pin is provided with an R-shaped bolt after the hanger branch is fixed on the hanger disc.

[0010] The split adapter ring comprises a first adapter ring split, a second adapter ring split and a third adapter ring split connected by a connecting screw; a plurality of through holes are arranged on the split adapter ring; after the threaded hoisting rod passes through the through hole, the threaded hoisting rod is locked by a nut and connected with a lifting ring nut; the lifting ring nut is connected with the lower heavy load hoisting rope.

[0011] A support sleeve is arranged on the threaded hoisting rod.

[0012] A flexible pad is arranged between the side plate type hoisting block and the system support backboard.

[0013] The side plate type hoisting block and the flexible pad are connected through a long screw; the side plate type hoisting block and the system support backboard are connected through a long screw.

[0014] The side plate type lifting block is provided with a horizontal plate screw hole, and the threaded lifting rod is connected in the horizontal plate screw hole and has a locking nut connected at one end.

[0015] In a second aspect, the application discloses an assembling method of the stereoscopic lifting equipment based on the large-aperture optical imaging system, and the assembling method comprises the following steps: Step one, after cleaning burrs and contaminants on the installation surface of the side plate type lifting block, the side plate type lifting block is fixedly connected to the system support back plate by using long screws. Step two, the lower end of each threaded lifting rod is sequentially connected to each side plate type lifting block, and the upper end of each threaded lifting rod is locked by a nut after passing through the through hole on the petal type adapter ring. Step three, the lifting frame petals on the retractable lifting frame in the travelling crane unit are opened, the two ends of the telescopic tight rope device are respectively connected to the upper heavy load lifting rope and the lower heavy load lifting rope, and the upper heavy load lifting rope is connected to the lifting frame petals. Step four, the travelling crane is started and connected to the travelling crane unit, the travelling crane unit is lifted to a suitable position, and the lower heavy load lifting rope is connected to the upper end of the threaded lifting rod. Step five, the total length of the lower heavy load lifting rope and the upper heavy load lifting rope connected to each threaded lifting rod is adjusted to be equal by using a wrench to twist the telescopic tight rope device, so that the large-aperture imaging system is completely in a vertical state. Step six, the travelling crane is started again, and the large-aperture imaging system is lifted and placed on the parking tool.

[0016] Compared with the prior art, the application has the following beneficial effects: The application discloses a three-dimensional hoisting equipment based on a large-aperture optical imaging system, through distributed connection design of a split adapter ring 6 and a plurality of threaded hangers 503, hoisting force is evenly dispersed to a plurality of side plate type lifting blocks 501 of a system support back plate, effectively avoiding structural deformation caused by single-point stress, and the three-dimensional hoisting equipment is particularly suitable for a large-aperture optical imaging system 4 and other high-precision equipment sensitive to deformation. The elastic buffer system formed by the telescopic tight rope device 703 arranged in the flexible structure unit 7 and the upper and lower heavy-duty lifting ropes can absorb instantaneous impact force and low-frequency vibration generated in the process of moving and hoisting, and cooperates with the threaded connection mode of the rigid structure unit 5 to form a rigid-flexible mechanical transmission path, thereby significantly reducing the micro-vibration interference of hoisting operation on the optical element. The split structure 302 of the retractable lifting frame 3 has a radial telescopic function, can adjust the coverage range according to the aperture size of the hoisted system, cooperates with the modular split design of the split adapter ring 6, realizes quick adaptation of optical imaging systems of different specifications, and improves equipment multiplexing rate. The independent adjustment characteristic of the telescopic tight rope device 703 allows micron-level adjustment of the length of each lifting rope, and in combination with the rotation freedom of the split adapter ring 6, six-degree-of-freedom attitude correction of the hoisted system in a three-dimensional space can be realized, and accurate alignment of the optical system and the mounting base is ensured. The rigid structure unit 5 adopts a rigid connection scheme of the threaded hanger 503 and the side plate type lifting block 501, while guaranteeing bearing capacity, reduces horizontal space occupation through a vertical force transmission path, and is particularly suitable for precise hoisting operation in a limited operation environment such as a clean room.

[0017] The application discloses an assembling method of a three-dimensional hoisting device based on a large-aperture optical imaging system. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a structural schematic diagram of a three-dimensional hoisting device based on a large-aperture optical imaging system in the embodiments of the present application. Figure 2 It is a schematic diagram of a retractable lifting frame in a retracted state in a three-dimensional hoisting device based on a large-aperture optical imaging system in the embodiments of the present application. Figure 3 It is a structural schematic diagram of a rigid structure unit in a three-dimensional hoisting device based on a large-aperture optical imaging system in the embodiments of the present application. Figure 4It is a split adapter ring structure schematic diagram of a three-dimensional hoisting equipment based on a large-aperture optical imaging system in the embodiment of the present application; Figure 5 It is a flexible structure unit exploded structure schematic diagram of the three-dimensional hoisting equipment based on the large-aperture optical imaging system in the embodiment of the present application; Figure 6 It is a hoisting structure logical layout diagram of the three-dimensional hoisting equipment based on the large-aperture optical imaging system in the embodiment of the present application; Figure 7 It is a three-dimensional hoisting overall model diagram of the three-dimensional hoisting equipment based on the large-aperture optical imaging system in the embodiment of the present application.

[0020] Wherein: 1-row hoist hook; 2-row hoist rope; 3-shrinkable hanger; 301-hanger disc; 302-hanger branch; 303-locking pin; 304-R-shaped bolt; 4-large-aperture optical imaging system; 5-rigid structure unit; 501-side plate type lifting block; 502-flexible base plate; 503-threaded lifting rod; 504-supporting sleeve; 505-locking nut; 506-first associated shackle; 6-split adapter ring; 601-first adapter ring branch; 602-second adapter ring branch; 603-third adapter ring branch; 604-connection screw; 7-flexible structure unit; 701-heavy load hoist rope; 702-hoist ring nut; 703-telescopic tightener; 704-second associated shackle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0023] It should be noted that: similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0025] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0026] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] The present application will be described in further detail below with reference to the accompanying drawings: Referring to Figure 1 The embodiment of the present application discloses a three-dimensional hoisting equipment based on a large-aperture optical imaging system, characterized in that it comprises a row hoist unit, a flexible structure unit 7 and a rigid structure unit 5 connected in turn from top to bottom; the rigid structure unit 5 is connected with the system support back plate of the large-aperture optical imaging system 4, and the row hoist unit is used for connecting with the row hoist device for hoisting; the row hoist unit comprises a row hoist hook 1, the row hoist hook 1 is connected with a plurality of row hoist ropes 2 corresponding to the hanger branch petals 302, and each row hoist rope 2 is connected with the corresponding hanger branch petal 302.

[0028] The row hoist unit comprises a retractable hanger 3, the retractable hanger 3 is provided with a plurality of retractable hanger branch petals 302 extending from the center; the petal structure 302 of the retractable hanger 3 has a radial telescopic function, can adjust the coverage range according to the aperture size of the hoisted system, and cooperates with the modular split design of the split adapter ring 6 to realize the rapid adaptation of different specifications of optical imaging systems and improve the equipment reuse rate.

[0029] Referring to Figure 5, each of the hangers 302 is connected with an upper heavy load hoisting rope in the flexible structure unit 7, the upper heavy load hoisting rope is connected with the upper end of the telescopic tight rope device 703, the lower end of the telescopic tight rope device 703 is connected with the split adapter ring 6 through a lower heavy load hoisting rope, and the split adapter ring 6 is connected with a plurality of threaded hoisting rods 503 in a distributed manner, so that the lifting force is uniformly dispersed to a plurality of side plate type lifting blocks 501 of the system support back plate, structural deformation caused by single-point stress is effectively avoided, and the device is particularly suitable for a large-diameter optical imaging system 4 and the like which are sensitive to deformation and high-precision equipment. The telescopic tight rope device 703 arranged in the flexible structure unit 7 and the upper and lower heavy load hoisting ropes form an elastic buffer system, which can absorb instantaneous impact force and low-frequency vibration generated in the process of hoisting, and cooperates with the threaded connection mode of the rigid structure unit 5 to form a rigid-flexible mechanical transmission path, so that the micro-vibration interference of the hoisting operation on the optical element is significantly reduced. The independent adjustment characteristic of the telescopic tight rope device 703 allows the length of each hoisting rope to be adjusted by millimeters, and in combination with the rotation freedom of the split adapter ring 6, six-degree-of-freedom attitude correction of the hoisted system in a three-dimensional space can be realized, so as to ensure accurate alignment of the optical system and the mounting base.

[0030] Referring to Figure 3 , each position, at which the split adapter ring 6 is connected with the lower heavy load hoisting rope, is connected with a threaded hoisting rod 503 in the rigid structure unit 5; a plurality of side plate type lifting blocks 501 corresponding to the number of the threaded hoisting rods 503 are arranged on the system support back plate, and the side plate type lifting blocks 501 are connected with the threaded hoisting rods 503. A support sleeve 504 is sleeved on the threaded hoisting rod 503. Flexible pads 502 are arranged between the side plate type lifting blocks 501 and the system support back plate. The side plate type lifting blocks 501 and the system support back plate are connected through long screws. The side plate type lifting blocks 501 are provided with horizontal plate screw holes, the threaded hoisting rods 503 are connected in the horizontal plate screw holes, and one end of the threaded hoisting rods 503 is connected with a locking nut 505. The rigid structure unit 5 adopts the rigid connection scheme of the threaded hoisting rod 503 and the side plate type lifting block 501, which reduces the horizontal space occupation through a vertical force transmission path while ensuring the bearing capacity, and is particularly suitable for precise hoisting operation in a limited operation environment such as a clean room. The rigid structure unit 5 adopts the rigid connection scheme of the threaded hoisting rod 503 and the side plate type lifting block 501, which reduces the horizontal space occupation through a vertical force transmission path while ensuring the bearing capacity, and is particularly suitable for precise hoisting operation in a limited operation environment such as a clean room.

[0031] Referring to Figure 2The collapsible hanger 3 comprises a hanger disc 301, a plurality of support rails corresponding to the number of the hanger branch petals 302 and matched in structure are arranged on the hanger disc 301, a plurality of connecting holes are arranged on the two side walls of the support rails, and a branch connecting hole is arranged at a corresponding position on the hanger branch petal 302; the hanger branch petal 302 is connected to the support rail through the connecting piece penetrating through the connecting hole and the branch connecting hole; and a connecting ring is arranged at the lower end of the support rail. The connecting piece is a locking pin 303, and an R-shaped bolt 304 is arranged at one end of the locking pin after the hanger branch petal 302 is fixed on the hanger disc 301.

[0032] Referring to Figure 4 The split adapter ring 6 comprises a first adapter ring split 601, a second adapter ring split 602 and a third adapter ring split 603 connected through connecting screws 604; a plurality of through holes are arranged on the split adapter ring 6, the threaded hanger rod 503 is locked by a nut after penetrating through the through hole and is connected with a lifting ring nut 702, and the lifting ring nut 702 is connected with the lower heavy load lifting rope.

[0033] The present application adopts a rigid-flexible combined connection mode, in order to increase the stability and reliability of the overall hoisting system, a rigid structure is used near the position of the center of gravity of the system, a flexible structure is used to connect the rigid structure and the steel hanger, the rigid structure is connected to the system body through an adapter lifting block, and the adapter lifting block is separated from the system by using a flexible pad at the contact surface, so that the adapter block cannot cause irreparable damage to the contact surface after loading.

[0034] Referring to Figure 6 and Figure 7 The embodiment of the present application also discloses an assembling method of the above-mentioned stereoscopic hoisting equipment based on a large-aperture optical imaging system, comprising the following steps. Step one, after cleaning burrs and contaminants on the installation surface of the side plate type lifting block 501, long screws are used to fixedly connect the side plate type lifting block 501 to the system support back plate; Step two, the lower end of each threaded hanger rod 503 is sequentially connected with each side plate type lifting block 501, and the upper end of each threaded hanger rod 503 is locked by a nut after penetrating through the through hole on the split adapter ring 6; Step three, the hanger branch petal 302 on the collapsible hanger 3 in the row hoist unit is opened; the two ends of the telescopic tight rope device 703 are connected with the upper end heavy load lifting rope and the lower end heavy load lifting rope respectively; and the upper end heavy load lifting rope is connected with the hanger branch petal 302; Step four, the row hoist is started and connected with the row hoist unit, the row hoist unit is hoisted to a suitable position, and the lower end heavy load lifting rope is connected with the upper end of the threaded hanger rod 503; Step five, adjust the total length of the lower heavy lifting rope and the upper heavy lifting rope connected by each threaded lifting rod 503 by twisting the telescopic rope tightener 703 with a wrench, to ensure that the large-diameter imaging system 4 is completely in a vertical state; Step six, start the traveling crane again, and hoist the large-diameter imaging system 4 on the parking tool.

[0035] The application discloses an assembling method of a three-dimensional hoisting equipment based on a large-diameter optical imaging system, and the installation surface of a side plate type lifting block is cleaned in step one, so that the stress concentration risk caused by burrs and pollutants is effectively eliminated, the rigid connection mode of a long screw is matched, the bonding strength of the side plate type lifting block and a system support back plate is ensured, and a stable foundation is provided for subsequent hoisting. In step two, the sequential connection design of the threaded lifting rod and the side plate type lifting block is combined with the through hole positioning function of a split type adapter ring to form a modular assembly system, the accurate alignment of the lifting rod and the lifting block can be realized, and the problem of uneven mechanical distribution caused by assembly deviation is avoided. In steps three to five, the independent adjustment mechanism of the upper and lower heavy lifting ropes by the telescopic rope tightener is matched with the total length equalization calibration requirement, the uniform distribution of the load of each lifting point can be realized, the large-diameter imaging system is kept in a vertical state during hoisting, and the stress damage of optical elements caused by inclination is avoided. The combined design of the retractable lifting frame support segment and the split type adapter ring enables the hoisting equipment to have the functions of radial expansion and split disassembly, adapt to the rapid adaptation requirements of optical systems of different diameters, and simplify the on-site assembly process and shorten the equipment deployment time. The distributed layout of multiple lifting points and the elastic adjustment characteristics of the telescopic rope tightener form a double protection: when the load of a single lifting point suddenly changes, the remaining lifting points can realize load redistribution through length adjustment, and the receiving function of the parking tool in step six is matched, so that the equipment overturning risk caused by accidents during hoisting is effectively prevented. The mechanical design of the telescopic rope tightener allows the length of each lifting rope to be accurately adjusted by millimeters, and the split type adapter ring has a rotation degree of freedom, so that the six-degree-of-freedom attitude correction of the hoisted system in a three-dimensional space can be realized, and the alignment requirements of high-precision optical equipment are met.

[0036] The working process of the application is as follows: I. Installation of adapter lifting block assembly Step 1.1, clean the installation surface of the side plate type lifting block 501 and the flexible pad 502 to remove burrs, grease and other pollutants; Step 1.2, use a long hexagonal screw (such as M4x30) to connect 6 groups of flexible pads 502 and side plate type lifting blocks 501; Step 1.3, sequentially connect the side plate type lifting block assembly with the circumferential side surface installation surface of the system support back plate, fasten it with 4 M10x50 long hexagonal screws, and tighten it to the same torque in sequence to ensure uniform pre-tightening force.

[0037] II. Installation of threaded lifting rod Step 2.1, connect the 6 rigid threaded hangers 503 to the horizontal plate screw holes of each side plate lifting block 501 one by one. To ensure that the threaded hangers are loose, use lock nuts 505 to tighten the lower surface of the horizontal plate of the lifting block; Step 2.2, select 3 equal length support sleeves 504 from the 6 rigid threaded hangers 503. One side is used to support the split transition ring 6, and the other side is used to control the height of the support points of the transition ring 6.

[0038] Three, install the split transition ring Step 3.1, mainly use the single-point lifting of the row crane, and two operators assist at both ends to ensure that the two through holes of the single-petal transition ring pass through the upper ends of the threaded rods smoothly, and then lock the ends of the two threaded rods with nuts, respectively. A small section of thread is left for connection with the lifting ring nut 702, and the installation of the first adapter ring split 601 is completed. Step 3.2, install the second adapter ring split 602 and the third adapter ring split 603 in turn according to the method described in step 3.1; Step 3.3, use the connecting screws 604 to connect the split adapter rings 6 into a whole; Step 3.4, connect the 6 lifting ring nuts 702 to the reserved threads on the upper ends of the 6 threaded hangers 503.

[0039] Four, assemble the retractable lifting frame Step 4.1, unfold the 6 lifting frame petals 302 of the retractable lifting frame 3 in turn, insert locking pins 303 into the locking pin holes between the lifting frame petals 302 and the lifting frame disc 301, and insert R-shaped pins 304 to prevent the locking pins from falling out; Step 4.2, install the row crane lifting ropes 2 in the 6 lifting frame petals 601 in turn, and connect them with the same size shackles between the lifting frame petals 302 and the row crane lifting ropes 2; Step 4.3, assemble the heavy load lifting ropes 701 at both ends of the telescopic tightener 703, and connect them with the same size shackles, a total of 6 groups of lifting ropes; Step 4.4, start the row crane, and lower the row crane hook 1 to an appropriate height, and connect the 6 row crane lifting ropes 2 with the row crane hook 1; Step 4.5, start the row crane again, and raise the retractable lifting frame 3 to an appropriate height, and connect the 6 groups of lifting ropes with the 6 lifting frame petals 302 in turn, and connect them with the same size shackles; Step 4.6, use the row crane to raise the heavy load lifting ropes 701 to the appropriate position, connect the other ends of the 6 groups of heavy load lifting ropes 701 with the 6 lifting ring nuts 702, and connect them with the same size; Step 4.7, adjust the 6 heavy load hoisting ropes 701 to be equal in length by twisting the telescopic rope tightener 703 with a wrench, to ensure that the large-aperture imaging system 4 is completely in a vertical state; Step 4.8, start the travelling crane again, and hoist the large-aperture imaging system 4 on the parking tool (not belonging to the hoisting).

[0040] The preferred embodiments of the present application have been described above with the preferred embodiments, but the present application is not limited to the above examples, and various modifications and changes can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stereoscopic hoisting apparatus based on a large-aperture optical imaging system, characterized by, It comprises a row and suspension unit, a flexible structure unit (7) and a rigid structure unit (5) connected in sequence from top to bottom; the rigid structure unit (5) is connected with a system support backboard of a large-diameter optical imaging system (4), and the row and suspension unit is used for being connected with a row and suspension device for hoisting; The row and suspension unit comprises a retractable suspension frame (3) provided with a plurality of retractable suspension frame petals (302) extending from the center, each of the suspension frame petals (302) is connected with an upper heavy load lifting rope in the flexible structure unit (7), the upper end of a telescopic tight rope device (703) is connected with the upper heavy load lifting rope, the lower end of the telescopic tight rope device (703) is connected with a split adapter ring (6) through a lower heavy load lifting rope; each position on the split adapter ring (6) connected with the lower heavy load lifting rope is connected with a threaded lifting rod (503) in the rigid structure unit (5); a plurality of side plate type lifting blocks (501) corresponding to the number of the threaded lifting rods (503) are arranged on the system support backboard, and the side plate type lifting blocks (501) are connected with the threaded lifting rods (503).

2. The stereoscopic hoisting apparatus based on a large-aperture optical imaging system according to claim 1, characterized by, The row and suspension unit comprises a row and suspension hook (1) connected with a plurality of row and suspension ropes (2) corresponding to the suspension frame petals (302), and each of the row and suspension ropes (2) is connected with a corresponding suspension frame petal (302).

3. The stereoscopic hoisting apparatus based on a large-aperture optical imaging system according to claim 1, characterized by, The retractable suspension frame (3) comprises a suspension frame disc (301) provided with a plurality of support rails corresponding to the number of the suspension frame petals (302) and matched in structure, a plurality of connecting holes are arranged on the two side wall surfaces of the support rails, and petal connecting holes are arranged at corresponding positions on the suspension frame petals (302); the suspension frame petals (302) are connected on the support rails through connecting pieces penetrating the connecting holes and the petal connecting holes; and a connecting ring is arranged at the lower end of the support rail.

4. The stereoscopic hoisting apparatus based on a large-aperture optical imaging system according to claim 3, characterized by, The connecting piece is a locking pin (303), and after the suspension frame petal (302) is fixed on the suspension frame disc (301) by the locking pin, an R-shaped bolt (304) is arranged at one end.

5. The stereoscopic hoisting apparatus based on a large-aperture optical imaging system according to claim 1, characterized by, The split adapter ring (6) comprises a first adapter ring split petal (601), a second adapter ring split petal (602) and a third adapter ring split petal (603) connected through a connecting screw (604); a plurality of through holes are arranged on the split adapter ring (6), the threaded lifting rod (503) penetrates the through hole, is locked by a nut and is connected with a lifting ring nut (702), and the lifting ring nut (702) is connected with the lower heavy load lifting rope.

6. The stereoscopic hoisting apparatus based on a large-aperture optical imaging system according to claim 1, characterized by, A support sleeve (504) is sleeved on the threaded lifting rod (503).

7. The stereoscopic hoisting apparatus based on a large-aperture optical imaging system according to claim 1, characterized by, A flexible pad (502) is arranged between the side plate type lifting block (501) and the system support backboard.

8. The stereoscopic overhead lifting device based on a large-aperture optical imaging system according to claim 7, characterized in that, The side plate type lifting block (501) and the system support backboard are connected through long screws.

9. The stereoscopic hoisting apparatus based on a large-aperture optical imaging system according to claim 1, characterized by, A horizontal plate screw hole is arranged on the side plate type lifting block (501), the threaded lifting rod (503) is connected in the horizontal plate screw hole, and one end of the threaded lifting rod (503) is connected with a locking nut (505).

10. A method of assembling a stereoscopic hoisting apparatus based on a large aperture optical imaging system according to any one of claims 1 to 9, characterized in that, The method comprises the following steps: Step one, after cleaning the burrs and contaminants on the installation surface of the side plate type hanging block (501), use long screws to fix and connect the side plate type hanging block (501) on the system support back plate; Step two, connect the lower end of each threaded hanging rod (503) with each side plate type hanging block (501) in turn, and then pass the upper end of each threaded hanging rod (503) through the through hole on the petal type adapter ring (6) and lock it with a nut; Step three, open the hanger branch petal (302) on the retractable hanger (3) in the traveling crane unit; connect the two ends of the telescopic tight rope device (703) with the upper and lower heavy load lifting ropes respectively; connect the upper heavy load lifting rope with the hanger branch petal (302); Step four, start the traveling crane and connect with the traveling crane unit, hoist the traveling crane unit to the appropriate position, and connect the lower heavy load lifting rope with the upper end of the threaded hanging rod (503); Step five, use a wrench to twist the telescopic tight rope device (703) to adjust the total length of the lower heavy load lifting rope and the upper heavy load lifting rope connected with each threaded hanging rod (503) to be equal, so as to ensure that the large diameter imaging system (4) is completely in a vertical state; Step six, start the traveling crane again, and hoist the large diameter imaging system (4) on the parking tool.

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