A rocket lift platform with arms

Abstract

This utility model provides a boom-type rocket lifting platform, which includes a rotating section and a lifting section. The rotating section is fixedly connected to one side of a fixed tower, and the lifting section is movably connected to the other side of the rotating section. The lifting section can move vertically relative to the rotating section to facilitate operation of the rocket body. The rotating section includes a rotating drive mechanism, a rotating frame, and a pin mechanism. The drive mechanism is fixedly connected to one side of the fixed tower. One side of the rotating frame is connected to the drive end of the drive mechanism, and the other side of the rotating frame is connected to the lifting section. The drive mechanism drives the rotating frame to rotate, and pin mechanisms are provided on the rotating frame and the corresponding side of the fixed tower to restrict the rotation of the rotating frame. This boom-lifting platform can achieve full enclosure of the rocket body horizontally after it is erected, meeting the personnel operating space requirements. This lifting platform can meet the operating requirements at different heights, greatly improving the efficiency of rocket construction.

Description

Technical Field

[0001] This utility model relates to the field of rocket launch pad technology, specifically a boom-type rocket lifting platform. Background Technology

[0002] The launch vehicle fixed tower rotating lifting platform provides crucial support for the docking of the rocket and satellite fairing, the connection of the rocket-to-ground interface, and testing, and provides a safe and reliable working platform for personnel operation and facility and equipment operation.

[0003] Currently, existing launch vehicle fixed-tower rotary platforms, designed to provide a fully enclosed working surface after rocket erection, are mostly double-unit symmetrical structures. These structures are relatively complex, have large fixed-tower loads, and incur high construction and maintenance costs. Furthermore, the limited operating space for personnel on existing rotary platforms negatively impacts construction efficiency. Therefore, simplifying the structure, reducing costs, optimizing the design of the rotary platform, and improving operating space are among the most pressing issues to be addressed in the commercial aerospace sector. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a boom-type rocket lifting platform to solve the problems of complex structure, heavy weight, high cost, small operating space and low safety of the existing rotary lifting platform.

[0005] This utility model provides a boom-type rocket lifting platform, which includes a rotating part and a lifting part. The rotating part is fixedly connected to one side of a fixed tower, and the lifting part is movably connected to the other side of the rotating part. The lifting part can move up and down relative to the rotating part to facilitate operation of the rocket body. The rotating part includes a rotating drive mechanism, a rotating frame, and a pin mechanism. The drive mechanism is fixedly connected to one side of the fixed tower. One side of the rotating frame is connected to the drive end of the drive mechanism, and the other side of the rotating frame is connected to the lifting part. The drive mechanism is used to drive the rotating frame to rotate. The pin mechanism is provided on the rotating frame and on the side corresponding to the fixed tower to restrict the rotation of the rotating frame.

[0006] Furthermore, the lifting unit includes: a first lifting platform, a second lifting platform, and a third lifting platform, wherein the first lifting platform is movably connected to the lower part of the rotating frame, the second lifting platform is disposed on the upright of the first lifting frame above the first lifting platform and moves up and down with the first lifting platform; and the third lifting platform is movably connected to the upper part of the rotating frame.

[0007] Furthermore, the first lifting platform also includes: a first swing arm, a first guide mechanism, a first lifting drive mechanism, and a first flap assembly. The first guide mechanism and the first lifting drive mechanism are located on the side of the first lifting frame closest to the rotating frame. The first lifting drive mechanism drives the first lifting frame to move vertically along the first guide mechanism. The first swing arm includes a left swing arm and a right swing arm, respectively located on two connecting ends of the first lifting frame away from the rotating frame. The two connecting ends of the first lifting frame away from the rotating frame, together with the inner sides of the left and right swing arms, form a circle. The inner sides of the connecting ends, the inner sides of the left and right swing arms are all provided with the first flap assembly for reducing the gap between the first lifting platform and the rocket body.

[0008] Furthermore, the first guiding mechanism includes a guide rail, a vertical guide wheel, and a horizontal guide wheel. The guide rail is fixedly installed on the side of the rotating frame close to the first lifting frame. The vertical guide wheel and the horizontal guide wheel are fixedly installed on the first lifting frame corresponding to the guide rail, for guiding in the horizontal and vertical directions. The vertical guide wheel and the horizontal guide wheel are arranged vertically along the lifting direction.

[0009] Furthermore, the first lifting drive mechanism includes a drive cylinder, a drive connecting seat, and a cylinder pin assembly. The fixed end of the drive cylinder is fixedly connected to the side of the first lifting frame near the rotating frame via the drive connecting seat, and the telescopic end of the drive cylinder extends vertically upward. The cylinder pin assembly is fixedly installed at the end of the telescopic end of the drive cylinder for corresponding insertion into the pin hole on the rotating frame.

[0010] In this embodiment of the present invention, the second lifting platform includes a second lifting frame, a second swing arm, and a second flap assembly. The second lifting frame is fixedly connected to the upper part of the first lifting frame. The second swing arm is a left swing arm and is disposed on the connecting end of the second lifting frame away from the first lifting frame. The second lifting frame and the second swing arm are used to provide the second flap assembly close to the inner side of the rocket body.

[0011] In this embodiment of the invention, the third lifting platform includes a third lifting frame, a third swing arm, a third guide mechanism, a third lifting drive mechanism, and a third flap assembly. The third guide mechanism is located on the side of the third lifting frame closest to the rotating frame. The third lifting drive mechanism is located on the rotating frame, driving the third lifting frame to vertically lift along the third guide mechanism. The third swing arm includes a left swing arm and a right swing arm, located on two connecting ends of the third lifting frame away from the rotating frame. The two connecting ends of the third lifting frame away from the rotating frame, together with the inner sides of the left and right swing arms, form a circle. The inner sides of the connecting ends, the left swing arm, and the right swing arm are all provided with the third flap assembly for reducing the gap between the third lifting platform and the rocket body.

[0012] Furthermore, the third lifting drive mechanism includes a winch and a movable pulley block, wherein the winch and the movable pulley block are mounted on the slewing frame, and the winch is connected to the third lifting frame via a pull rope.

[0013] In this embodiment of the invention, the rotary drive mechanism includes: a rotary drive cylinder, a drive rack and pinion rotary gear, and a limit switch. The rotary drive cylinder is fixedly mounted on the fixed tower via a rotary drive base. The drive rack is slidably engaged with the rotary drive base, with one end of the drive rack connected to the telescopic end of the rotary drive cylinder and the other end meshing with the rotary gear. The rotary gear is fixedly connected to the rotary frame. The limit switch is mounted on the rotary drive base.

[0014] Furthermore, the fixed tower is vertically equipped with two sets of the rotary drive mechanisms, and the rotary gears of the two sets of rotary drive mechanisms are fixedly connected by a synchronous shaft.

[0015] As can be seen from the above embodiments, the swivel-arm type rocket lifting platform provided by this utility model has at least the following advantages: This swivel lifting platform can achieve full enclosure of the rocket body in a horizontal plane after the rocket is erected, meeting the personnel operation space requirements. The multiple lifting platform configuration can meet the operation needs at different heights, greatly improving the efficiency of rocket construction. Furthermore, during the rotation process, it can effectively avoid collisions with the rocket body and the erecting vehicle in terms of route and space, meeting the platform's operational safety requirements and realizing basic functions such as lifting, limiting position after reaching the designated position, and personnel passage. This swivel lifting platform has a relatively simple structure and reliable operation, meeting the functional requirements of traditional swivel lifting platforms while simplifying the structure and reducing costs, thus contributing to the rapid development of commercial aerospace.

[0016] It should be understood that the above general description and the following specific embodiments are merely exemplary and illustrative, and do not limit the scope of the present invention. Attached Figure Description

[0017] The accompanying drawings are part of the specification of this utility model and illustrate exemplary embodiments of the utility model. The drawings, together with the description in the specification, are used to illustrate the principles of this utility model.

[0018] Figure 1 A schematic diagram of the overall structure of a boom-type rocket lifting platform provided by this utility model. Figure 1 .

[0019] Figure 2 A schematic diagram of the overall structure of a boom-type rocket lifting platform provided by this utility model. Figure 2 .

[0020] Figure 3 This utility model provides a diagram showing the closed state of the first lifting frame after the rotating frame of the boom-type rocket lifting platform is closed.

[0021] Figure 4 This utility model provides a diagram showing the first lifting frame in the open state after the rotating frame of the boom-type rocket lifting platform is closed.

[0022] Figure 5 This utility model provides a diagram showing the closed state of the second lifting frame after the rotating frame of the slewing frame is closed.

[0023] Figure 6 This utility model provides a diagram showing the second lifting frame in the open state after the rotating frame of the boom-type rocket lifting platform is closed.

[0024] Figure 7 This utility model provides a diagram showing the open state of the rotating frame of a boom-type rocket lifting platform.

[0025] Figure 8 A schematic diagram of the rotary drive mechanism of a boom-type rocket lifting platform provided by this utility model.

[0026] Figure 9 A top view of the first lifting platform of a boom-type rocket lifting work platform provided by this utility model.

[0027] Figure 10 The rear view of the first lifting platform of the arm-mounted rocket lifting work platform provided by this utility model.

[0028] Figure 11A side view of the first lifting platform of a boom-type rocket lifting work platform provided by this utility model.

[0029] Figure 12 The present invention provides a structural diagram of the first lifting drive mechanism of a boom-type rocket lifting work platform.

[0030] Figure 13 A schematic diagram of the horizontal guide wheel structure of a boom-type rocket lifting platform provided by this utility model.

[0031] Figure 14 A schematic diagram of the vertical guide wheel structure of a boom-type rocket lifting platform provided by this utility model.

[0032] Figure 15 A top view of the second lifting platform of a boom-type rocket lifting work platform provided by this utility model.

[0033] Figure 16 A top view of the third lifting platform of a boom-type rocket lifting work platform provided by this utility model.

[0034] Figure 17 This utility model provides a schematic diagram of the third lifting drive mechanism of a boom-type rocket lifting platform.

[0035] Figure 18 The front view of the pin mechanism of a boom-type rocket lifting platform provided by this utility model.

[0036] Figure 19 A side view of the pin mechanism of a boom-type rocket lifting platform provided by this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1-Slewing drive mechanism, 2-Slewing frame, 3-Pin mechanism, 4-First lifting platform, 5-Second lifting platform, 6-Third lifting platform, 7-Fixed tower, 8-Rocket body;

[0039] 11-Rotary drive cylinder, 12-Drive rack, 13-Rotary gear, 14-Limit switch, 15-Rotary drive base, 16-Synchronous shaft;

[0040] 21-Hinged truss, 22-Main truss, 23-End truss;

[0041] 31-Pin-driven hydraulic cylinder, 32-Hydraulic cylinder support, 33-Pin, 34-Pin base, 35-Buffer device, 36-Limit switch;

[0042] 41-First lifting frame, 42-First swing arm, 43-First guide mechanism, 44-First lifting drive mechanism, 45-First flip plate assembly;

[0043] 51-Second lifting frame, 52-Second swing arm, 53-Second tilting plate assembly;

[0044] 61-Third lifting frame, 62-Third swing arm, 63-Third guide mechanism, 64-Third lifting drive mechanism, 65-Third flip plate assembly;

[0045] 431-Guide rail, 432-Vertical guide wheel, 433-Horizontal guide wheel;

[0046] 441-Drive cylinder, 442-Drive connector, 443-Cylinder pin assembly;

[0047] 641-Winder, 642-Moving pulley block. Detailed Implementation

[0048] Various exemplary embodiments of the present invention are now described in detail. This detailed description should not be considered as a limitation of the present invention, but should be understood as a more detailed description of certain aspects, features and implementations of the present invention.

[0049] Various improvements and variations can be made to the specific embodiments described in this utility model without departing from the scope or spirit of this utility model, which will be obvious to those skilled in the art. Other embodiments derived from this utility model description will also be obvious to those skilled in the art. This application specification and embodiments are merely exemplary.

[0050] This utility model provides a boom-type rocket lifting platform, such as... Figure 1-19 The diagram shows the structure of the rotating and lifting work platform. In a specific embodiment, the work platform includes a rotating section and a lifting section. The rotating section is fixedly connected to one side of the rocket mounting tower 7, and the lifting section is movably connected to the other side of the rotating section. The lifting section can move up and down relative to the rotating section to facilitate operation of the rocket body 8. After the rocket body is transported to its designated position, the rotating section closes, thereby fitting the lifting section onto the outside of the rocket body. The lifting section can be adjusted up and down by a certain distance, providing an operating platform for docking the satellite fairing with the rocket body and connecting air conditioning pipes and other rocket-to-ground components after the rocket is erected.

[0051] like Figure 3As shown, the slewing unit includes a slewing drive mechanism 1, a slewing frame 2, and a locking mechanism 3. The drive mechanism 1 is fixedly connected to one side of the fixed tower 7. One side of the slewing frame 2 is connected to the drive end of the drive mechanism 1, and the other side of the slewing frame 2 is connected to the lifting unit. The drive mechanism 1 drives the slewing frame 2 to rotate. Locking mechanisms 3 are provided on the slewing frame 2 and the corresponding side of the fixed tower 7 to restrict the rotation of the slewing frame 2. After the slewing frame 2 is opened or closed, the locking mechanism 3 locks the slewing frame 2 in place, preventing movement during operation.

[0052] On the other side of the rotating frame 2, a lifting unit for operating the rocket body is movably connected. This unit can move up and down along the rotating frame 2, and the rotating frame drives the lifting platform to open or close, providing clearance for rocket erection. For example... Figure 2 As shown, in this embodiment, the rotating frame 2 includes a hinge truss 21, a main truss 22, and an end truss 23. Each truss is composed of multiple truss blocks, and the connections between the blocks are all flange bolt connections. A drive mechanism 1 is fixedly connected to one side of the hinge truss 21, driving the entire rotating frame 2 to rotate. The other side of the hinge truss 21 is fixedly connected to one side of the main truss 22, and the other side of the main truss 22 is fixedly connected to the end truss 23, which is used to connect the lifting unit.

[0053] like Figure 3 As shown, the locking mechanism 3 includes a front locking device and a rear locking device. The front locking device, fixedly mounted on the side wall of the fixed tower 7, is used to limit and fix the slewing frame 2 when it is closed, and is used to lock the slewing frame 2 in the closed position. The rear locking device, fixedly mounted on the adjacent side wall of the fixed tower 7, is used to limit and fix the slewing frame 2 when it is open, and is used to lock the slewing frame 2 in the open position. After the slewing frame 2 is closed, the front locking device locks; after it is open, the rear locking device locks.

[0054] like Figure 18 and Figure 19 As shown, in this embodiment, the front pin device and the rear pin device have the same structure, specifically including: a pin drive cylinder 31, a cylinder support 32, a pin 33, a pin base 34, a buffer device 35, and a limit switch 36. The cylinder support 32 and the pin base 34 are fixedly mounted on the side wall of the fixed tower 7 in an upper-lower position. The fixed end of the pin drive cylinder 31 is connected to the cylinder support 32, and the other end is connected to the pin 33. The pin 33 can be vertically inserted into the pin slot of the pin base 34 to engage with the pin buckle on the rotating frame 2, which is inserted into the pin slot, for locking. When the rotating frame 2 is closed or opened to its final position, the pin buckle is inserted into the pin slot of the pin base 34, and the pin 33 is inserted into the pin slot and pin buckle from a direction perpendicular to the pin slot to lock, thereby locking the rotating frame 2.

[0055] In addition, two limit switches 36 are provided on the cylinder support 32 along the extension and retraction direction of the cylinder 31 driven by the pin, which are used to limit the extension and retraction strokes respectively.

[0056] In specific embodiments of this utility model, such as Figure 1 As shown, the lifting unit includes a first lifting platform 4, a second lifting platform 5, and a third lifting platform 6. The first lifting platform 4 is movably connected to the lower part of the rotating frame 2. The second lifting platform 5 is mounted on the upright of the first lifting frame 41 above the first lifting platform 4 and moves up and down with the first lifting platform 4. The second lifting platform 5 can be adjusted in height by ±200mm through the adjustment of the flange connection position, increasing the operating height range.

[0057] The third lifting platform 6 is movably connected to the upper part of the slewing frame 2 and is used for large-stroke lifting.

[0058] Furthermore, such as Figure 4 , Figure 9 As shown, the first lifting platform 4 also includes: a first swing arm 42, a first guide mechanism 43, a first lifting drive mechanism 44, and a first flip-plate assembly 45. Among them,

[0059] The first lifting frame 41 is provided with a first guide mechanism 43 and a first lifting drive mechanism 44 on the side near the rotating frame 2. The first lifting drive mechanism 44 drives the first lifting frame 41 to move vertically up and down along the first guide mechanism 43.

[0060] The first swing arm 42 includes a left swing arm and a right swing arm, which are located on two connecting ends of the first lifting frame 41 on the side away from the rotating frame 2, respectively. The left and right swing arms are connected to the first lifting frame 41 through rotating hinges, and the opening and closing of the left and right swing arms are realized by a drive cylinder fixed on the first lifting frame 41.

[0061] join Figure 9The two connecting ends of the first lifting frame 41 on the side away from the rotating frame 2, together with the inner sides of the left and right swing arms, form a circle. A first flap assembly 45 is provided on the inner sides of the connecting ends, the left swing arm, and the right swing arm to reduce the gap between the first lifting platform 4 and the rocket body 8. The first flap assembly 45 consists of multiple flaps, closely spaced. When the flaps are flattened, the gap between them and the rocket body 8 is 250mm; when the flaps are flipped up, the gap is 600mm. The flaps are designed to reduce the gap between the lifting frame and the rocket, facilitating maintenance operations on the rocket body, preventing falls, and improving operational safety. Additionally, the edges of the flaps corresponding to the rocket body 8 are lined with soft materials, such as rubber or felt, for cushioning and protection. The flaps need to be flipped up each time the rotating frame rotates. In this embodiment, the flap assembly is manually flipped, with a flip angle of approximately 170 degrees. When the slewing frame 2 is closed and the left and right swing arms are closed, the flip plate is manually flipped and laid flat in the direction of the rocket body to reduce the gap between the first lifting frame and the rocket body, making it easier for operators to walk.

[0062] In addition, the first lifting platform 4 also has a patterned plate, an outer ring fixed railing, and an inner ring pluggable railing. The patterned plate is laid in the travel channel on the first lifting frame 41 and the first swing arm 42. The outer ring fixed railing and the inner ring pluggable railing are respectively set on both sides of the travel channel on the first lifting frame 41 and the first swing arm 42, and the railings are connected by two metal chains.

[0063] Furthermore, such as Figure 10 , Figure 13 and Figure 14 As shown, the first guiding mechanism 43 includes a guide rail 431, a vertical guide wheel 432, and a horizontal guide wheel 433. The guide rail 431 is fixedly installed on the side of the rotating frame 2 near the first lifting frame 41, and guide rails 431 are provided on both sides of this side to ensure the stability of the first lifting frame 41 during lifting. The vertical guide wheel 432 and the horizontal guide wheel 433 are fixedly installed on the first lifting frame 41 corresponding to the guide rail 431, and are used for horizontal and vertical guidance. The vertical guide wheel 432 can roll along the guide rail during the lifting of the first lifting frame 41, and is used to vertically engage and limit the up-and-down movement of the first lifting frame 41. The horizontal guide wheel 433 also rolls in contact with the guide rail 431, and the engaging direction of the horizontal guide wheel 433 with the guide rail 431 is perpendicular to the engaging direction of the vertical guide wheel 432, and is used to horizontally limit the up-and-down movement of the first lifting frame 41. Vertical guide wheels 432 and horizontal guide wheels 433 are arranged vertically along the lifting direction. Furthermore, both the upper and lower parts of the first lifting frame 41 are equipped with vertical guide wheels 432 and horizontal guide wheels 433 to provide horizontal and vertical guidance, ensuring smoother and more stable lifting.

[0064] Furthermore, such as Figure 12 As shown, the first lifting drive mechanism 44 includes a drive cylinder 441, a drive connecting seat 442, and a cylinder pin assembly 443. The fixed end of the drive cylinder 441 is fixedly connected to the side of the first lifting frame 41 near the rotating frame 2 via the drive connecting seat 442. The telescopic end of the drive cylinder 441 extends vertically upwards. The cylinder pin assembly 443 is fixedly installed at the end of the telescopic end of the drive cylinder 441 for corresponding insertion into the pin hole on the rotating frame 2. When it is necessary to raise the first lifting frame 41, the locking pin between the first lifting frame 41 and the rotating frame 2 is first locked. Then, the telescopic end of the drive cylinder 441 extends upwards. After reaching a certain telescopic height, the cylinder pin assembly 443 is engaged and locked with the pin hole on the rotating frame 2. Then, the locking pin between the first lifting frame 41 and the rotating frame 2 is released, and the drive cylinder 441 is retracted, thereby achieving the purpose of raising the first lifting frame 41.

[0065] In specific embodiments of this utility model, such as Figure 15 As shown, the second lifting platform 5 includes a second lifting frame 51, a second swing arm 52, and a second tilting plate assembly 53. The second lifting frame 51 is fixedly connected to the upper part of the first lifting frame 41. By adjusting the flange connection position, the second lifting frame 51 can be adjusted in height relative to the first lifting frame 41 by ±200mm, increasing the operating height range.

[0066] The second swing arm 52 is a left swing arm, located on the connecting end of the second lifting frame 51 on the side away from the first fixed frame 41. The left swing arm is connected to the second lifting frame 51 via a rotating hinge, and its opening and closing are achieved by a drive cylinder fixed on the second lifting frame 51.

[0067] The second swing arm 52 is fitted with a second flap assembly 53 close to the inner side of the rocket body 8. The second flap assembly 53 consists of multiple flaps, closely spaced. When the flaps are flattened, the gap between them and the rocket body 8 is 250mm; when the flaps are flipped up, the gap is 600mm. Soft materials, such as rubber or felt, are provided along the edges of the flaps corresponding to the rocket body 8 to provide cushioning and protection. The flaps need to be flipped up each time the rotating frame rotates. In this embodiment, the flap assembly is manually flipped, with a flip angle of approximately 170 degrees.

[0068] In specific embodiments of this utility model, such as Figure 16 and Figure 17 As shown, the third lifting platform 6 includes a third lifting frame 61, a third swing arm 62, a third guide mechanism 63, a third lifting drive mechanism 64, and a third tilting plate assembly 65. Among them,

[0069] A third guide mechanism 63 is provided on the side of the third lifting frame 61 near the rotating frame 2, which is used to drive the third lifting frame 61 to move vertically up and down along the third guide mechanism 63.

[0070] A third lifting drive mechanism 64 is installed on the rotary frame 2. The third lifting drive mechanism 64 drives the third lifting frame 61 to move vertically up and down along the third guide mechanism 63. The third lifting drive mechanism 64 includes a winch 641 and a movable pulley block 642. The winch 641 and the movable pulley block 642 are installed on the rotary frame 2. The winch 641 is connected to the third lifting frame 61 through a pull rope, enabling it to move up and down under the pull of the winch 641. This allows for a large vertical lifting distance with a fast lifting speed.

[0071] The third swing arm 62 includes a left swing arm and a right swing arm, which are located on two connecting ends of the third lifting frame 61 on the side away from the rotating frame 2, respectively. The left and right swing arms are connected to the third lifting frame 61 through rotating hinges, and the opening and closing of the left and right swing arms are realized by driving cylinders fixed on the third lifting frame 61.

[0072] The two connecting ends of the third lifting frame 61 on the side away from the rotating frame 2, together with the inner sides of the left and right swing arms, form a circle. A third flap assembly 65 is provided on the inner sides of the connecting ends, the left swing arm, and the right swing arm to reduce the gap between the third lifting platform 6 and the rocket body. The third flap assembly 655 consists of multiple flaps, closely spaced. When the flaps are flattened, the gap between them and the rocket body 8 is 250mm; when the flaps are flipped up, the gap is 600mm. The flaps are designed to reduce the gap between the lifting frame and the rocket, facilitating maintenance operations on the rocket body, preventing falls, and improving operational safety. Additionally, the edges of the flaps corresponding to the rocket body 8 are lined with soft materials, such as rubber or felt, for cushioning and protection. The flaps need to be flipped up each time the rotating frame rotates. In this embodiment, the flap assembly is manually flipped, with a flip angle of approximately 170 degrees. After the slewing frame 2 is closed and the left and right swing arms are closed, manually flip the flap towards the rocket body to flatten it, thereby reducing the gap between the third lifting frame and the rocket body and making it easier for operators to walk.

[0073] In addition, the third lifting platform 6 also has a checkered plate, an outer ring fixed railing, and an inner ring pluggable railing. The checkered plate is laid in the travel channel on the third lifting frame 61 and the third swing arm 62. The outer ring fixed railing and the inner ring pluggable railing are respectively set on both sides of the travel channel on the third lifting frame 61 and the third swing arm 62, and the railings are connected by two metal chains.

[0074] Furthermore, such as Figure 10As shown, the structure of the third guide mechanism 63 is the same as that of the first guide mechanism 43. Both include guide rails, vertical guide wheels, and horizontal guide wheels to provide guidance in the horizontal and vertical directions, ensuring smoother and more stable lifting.

[0075] In specific embodiments of this utility model, such as Figure 8 As shown, the rotary drive mechanism 1 includes: a rotary drive cylinder 11, a drive rack 12, a rotary gear 13, and a limit switch 14. Among them,

[0076] The rotary drive cylinder 11 is fixedly mounted on the side wall of the fixed tower 7 via the rotary drive base 15. The drive rack 12 is slidably engaged with the rotary drive base 15, enabling it to perform linear reciprocating motion. One end of the drive rack 12 is connected to the extension end of the rotary drive cylinder 11, and the other end meshes with the rotary gear 13, which is fixedly connected to the rotary frame 2. By controlling the reciprocating motion of the drive rack 12, the rotary gear 13 is driven to rotate reciprocally, ultimately realizing the opening and closing motion of the rotary frame 2.

[0077] Limit switch 14 is installed on rotary drive base 15 to limit the movement of drive rack 12. When rotary drive cylinder 11 drives rotary gear 13 to rotate with drive rack 12, limit switch 14 will limit its rotation range, thereby enabling rotary frame 2 to accurately open or close.

[0078] Furthermore, the fixed tower 7 is vertically equipped with two sets of slewing drive mechanisms 1, and the slewing gears 13 of the two sets of slewing drive mechanisms 1 are fixedly connected by a synchronous shaft 16, so that the slewing frame 2 can be subjected to synchronous slewing torque, ensuring that the slewing process is stable and efficient.

[0079] In a specific embodiment of this utility model, the rotary lifting work platform is controlled by a control system. Important control components and lines in the system are all redundantly configured, such as the PLC master station, control power supply and fiber optic network, to further improve the safety and reliability of the system operation.

[0080] In this utility model, the rotation process of the rotating frame is as follows:

[0081] Rotating frame closing action:

[0082] Step 1: Ensure that the flaps on all three lifting platforms are in the flipped-up position.

[0083] Step 2: Open all the swing arms on the three lifting platforms to their maximum positions.

[0084] Step 3: Unlock the rear latch device, and then drive the rotary drive cylinder to extend.

[0085] Step 4: Rotate the frame from 170 degrees to 0 degrees. When it reaches 5 degrees, begin to decelerate and observe for any interference or extraneous objects.

[0086] Step 5: When the slewing frame is closed to the 0-degree position, the front locking pin device is locked.

[0087] Rotating frame opening action:

[0088] Step 1: Ensure that the flaps on all three lifting platforms are in the flipped-up position.

[0089] Step 2: Fully extend the lifting platform's swing arm to its maximum position.

[0090] Step 3: Unlock the front pin device, then drive the rotary hydraulic cylinder to retract.

[0091] Step 4: The rotary platform rotates from 0 degrees to 170 degrees. When it reaches 165 degrees, it begins to decelerate, and the operator observes for any interference or foreign objects.

[0092] Step 5: When the slewing frame is opened to the 170-degree position, the rear pin device is locked.

[0093] The operating procedure of the lifting platform is as follows:

[0094] The lifting actions of the first and second lifting platforms:

[0095] Step 1: Check the area around the first lifting platform 4 and the second lifting platform 5 for any interference or extraneous objects, and evacuate all personnel except for the lifting operators.

[0096] Step 2: Confirm that the locking pins between the first lifting frame 41 and the drive cylinder 441 and the rotating frame 2 are locked.

[0097] Step 3: Pull out the locking pin between the extension end of the drive cylinder and the rotating frame 2, extend the cylinder 200mm, and then reinsert the locking pin between the extension end of the drive cylinder and the rotating frame 2.

[0098] Step 4: Slightly retract the drive cylinder 441 until the pin on the drive cylinder 441 is stressed and the locking pin on the first lifting frame 41 is relieved of the stress, and then pull out the locking pin on the first lifting frame 41.

[0099] Step 5: Drive the hydraulic cylinder 441 to retract, causing the first lifting frame 41 to rise by about 200mm, and tighten the locking pin between the first lifting frame 41 and the rotating frame 2.

[0100] Step Six: The driving cylinder 441 extends slightly to the locking pin between the extension end of the driving cylinder and the rotating frame 2 to relieve the force.

[0101] Step 7: Pull out the locking pin between the extension end of the drive cylinder and the rotating frame 2, and extend the cylinder 200mm to complete one cylinder crawl.

[0102] Step 8: To continue raising or lowering, repeat the above actions.

[0103] The third lifting platform ascends:

[0104] Step 1: Check the area around the third lifting platform 6 for any interfering or extraneous objects, and evacuate all personnel except for the lifting operator.

[0105] Step 2: Start the winch 641, which will drive the drum to rotate, and the third lifting frame 61 will be raised by 5mm by the steel wire rope.

[0106] Step 3: Pull out the locking pin between the third lifting frame 61 and the rotating frame 2.

[0107] Step 4: The winch 641 continues to operate, driving the third lifting frame 61 to continue to rise.

[0108] Step 5: After the third lifting frame 61 reaches the required position, stop the operation of the winch 641 and insert the locking pin between the third lifting frame 61 and the slewing frame 2.

[0109] Step 6: The winch 641 rotates in the reverse direction, driving the third lifting frame 61 to slowly descend until the locking pin is under force and the motor stops running.

[0110] The above description is merely an illustrative embodiment of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A boom-type rocket lifting platform, characterized in that, The work platform includes a rotary section and a lifting section, wherein, The rotating part is fixedly connected to one side of the fixed tower (7), and the lifting part is movably connected to the other side of the rotating part. The lifting part can move up and down relative to the rotating part to facilitate the operation of the rocket body. The slewing part includes a slewing drive mechanism (1), a slewing frame (2), and a pin mechanism (3). The drive mechanism (1) is fixedly connected to one side of the fixed tower (7). One side of the slewing frame (2) is connected to the drive end of the drive mechanism (1), and the other side of the slewing frame (2) is connected to the lifting part. The drive mechanism (1) is used to drive the slewing frame (2) to rotate. The pin mechanism (3) is provided on the slewing frame (2) and on the side of the fixed tower (7) to restrict the rotation of the slewing frame (2).

2. The arm-mounted rocket lifting platform according to claim 1, characterized in that, The lifting unit includes: a first lifting platform (4), a second lifting platform (5), and a third lifting platform (6), wherein, The first lifting platform (4) is movably connected to the lower part of the rotating frame (2), and the second lifting platform (5) is set on the upright of the first lifting frame (41) above the first lifting platform (4) and moves up and down with the first lifting platform (4); The third lifting platform (6) is movably connected to the upper part of the rotating frame (2).

3. The arm-mounted rocket lifting platform according to claim 2, characterized in that, The first lifting platform (4) further includes: a first swing arm (42), a first guide mechanism (43), a first lifting drive mechanism (44), and a first flip-plate assembly (45), wherein, The first lifting frame (41) is provided with the first guide mechanism (43) and the first lifting drive mechanism (44) on the side near the rotating frame (2). The first lifting drive mechanism (44) drives the first lifting frame (41) to move vertically up and down along the first guide mechanism (43). The first swing arm (42) includes a left swing arm and a right swing arm, which are located on two connecting ends of the first lifting frame (41) on the side away from the rotating frame (2), respectively; The two connecting ends of the first lifting frame (41) on the side away from the rotating frame (2) together with the inner sides of the left swing arm and the right swing arm form a circle. The inner sides of the connecting ends, the inner sides of the left swing arm and the inner sides of the right swing arm are all provided with the first flap group (45) for reducing the gap between the first lifting platform (4) and the rocket body (8).

4. The arm-mounted rocket lifting platform according to claim 3, characterized in that, The first guiding mechanism (43) includes a guide rail (431), a vertical guide wheel (432), and a horizontal guide wheel (433), wherein, The guide rail (431) is fixedly installed on the side of the rotating frame (2) near the first lifting frame (41). The vertical guide wheel (432) and the horizontal guide wheel (433) are fixedly installed on the first lifting frame (41) corresponding to the guide rail (431) for guiding in the horizontal and vertical directions. Along the lifting direction, the vertical guide wheel (432) and the horizontal guide wheel (433) are arranged vertically.

5. The arm-mounted rocket lifting platform according to claim 3 or 4, characterized in that, The first lifting drive mechanism (44) includes a drive cylinder (441), a drive connecting seat (442), and a cylinder pin assembly (443), wherein, The fixed end of the drive cylinder (441) is fixedly connected to the side of the first lifting frame (41) near the rotating frame (2) through the drive connecting seat (442), and the telescopic end of the drive cylinder (441) extends vertically upward. The cylinder pin assembly (443) is fixedly installed at the end of the extension and retraction end of the drive cylinder (441) for corresponding insertion with the pin hole on the rotary frame (2).

6. The arm-mounted rocket lifting platform according to claim 3, characterized in that, The second lifting platform (5) includes a second lifting frame (51), a second swing arm (52), and a second tilting plate assembly (53), wherein, The second lifting frame (51) is fixedly connected to the upper part of the first lifting frame (41); The second swing arm (52) is a left swing arm, which is set on the connecting end of the second lifting frame (51) away from the first lifting frame (41); The second lifting frame (51) and the second swing arm (52) are used to provide the second flap assembly (53) close to the inner side of the rocket body (8).

7. The arm-mounted rocket lifting platform according to claim 2, characterized in that, The third lifting platform (6) includes a third lifting frame (61), a third swing arm (62), a third guide mechanism (63), a third lifting drive mechanism (64), and a third flip-plate assembly (65), wherein, The third lifting frame (61) is provided with the third guide mechanism (63) on the side close to the rotating frame (2); The third lifting drive mechanism (64) is provided on the rotating frame (2), and the third lifting drive mechanism (64) drives the third lifting frame (61) to move vertically up and down along the third guide mechanism (63); The third swing arm (62) includes a left swing arm and a right swing arm, which are located on two connecting ends of the third lifting frame (61) on the side away from the rotating frame (2), respectively; The two connecting ends of the third lifting frame (61) on the side away from the rotating frame (2) together with the inner sides of the left swing arm and the right swing arm form a circle. The inner sides of the connecting ends, the inner sides of the left swing arm and the inner sides of the right swing arm are all provided with the third flap group (65) for reducing the gap between the third lifting platform (6) and the rocket body.

8. The arm-mounted rocket lifting platform according to claim 7, characterized in that, The third lifting drive mechanism (64) includes a winch (641) and a movable pulley block (642), wherein the winch (641) and the movable pulley block (642) are mounted on the slewing frame (2), and the winch (641) is connected to the third lifting frame (61) by a pull rope.

9. The arm-mounted rocket lifting platform according to claim 1, characterized in that, The rotary drive mechanism (1) includes: a rotary drive cylinder (11), a drive rack (12), a rotary gear (13), and a limit switch (14), wherein, The rotary drive cylinder (11) is fixedly mounted on the fixed tower (7) via the rotary drive base (15). The drive rack (12) is slidably engaged on the rotary drive base (15). One end of the drive rack (12) is connected to the telescopic end of the rotary drive cylinder (11), and the other end is engaged with the rotary gear (13). The rotary gear (13) is fixedly connected to the rotary frame (2). The limit switch (14) is mounted on the rotary drive base (15).

10. The arm-mounted rocket lifting platform according to claim 9, characterized in that, The fixed tower (7) is vertically provided with two sets of the rotary drive mechanism (1), and the rotary gears (13) of the two sets of rotary drive mechanisms (1) are fixedly connected by a synchronous shaft (16).

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