Hoisting device and hoisting method applied to large mast

Abstract

The hoisting device comprises an upper hydraulic frame, a lower hydraulic frame and a hydraulic control device, the upper hydraulic frame and the lower hydraulic frame are detachably connected through a connecting rod, and the upper hydraulic frame and the lower hydraulic frame are each provided with a hydraulic telescopic round rod and a hydraulic telescopic square strip. The hydraulic telescopic round rods and the hydraulic telescopic square strips are controlled by the hydraulic control device to do telescopic motion, the upper hydraulic frame and the lower hydraulic frame can be installed and stably fixed to the large mast, hoisting points for hoisting and positioning are provided for the mast, and the hoisting accuracy and the installation quality of the large mast are improved; in addition, through telescopic adjustment and flexible adjustment of the distance between the upper hydraulic frame and the lower hydraulic frame, the device can adapt to masts of different sizes and shapes, the construction process is simplified, the positioning efficiency and accuracy are improved, the device has wide universality, meanwhile, through control over telescopic adjustment of the round rods and the square strips, interference and collision between the device and the masts are avoided, and the construction efficiency is improved. The safety and reliability of construction are improved, and risks are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a hoisting device and a hoisting method applied to a large mast. Background Art

[0002] In the process of shipbuilding, masts play a vital role. They are not only the key support of the ship structure, but also with the advancement of technology, the number of equipment carried on masts is increasing, such as radar, navigation, radio waves, etc. These equipment have put forward more stringent requirements on the structure and shape of large masts. In order to meet these needs, the design of large masts tends to be mast and tower structures. Such a design can not only provide a stable platform to better carry equipment, but also ensure that large masts have sufficient support and stability when facing wind and other environmental factors.

[0003] Specifically, large masts with tower structures usually adopt a variable cross-section lattice structure at the bottom. This structural design not only enhances the stability of large masts, but also improves the additional support and bearing capacity. At the same time, the thinner mast with a cone steel pipe structure at the top serves as a guide frame to provide space for the installation of communication antennas and other equipment. Large masts with a mast structure usually adopt a larger diameter at the bottom and gradually shrink upward to form a tower-like structure. This design helps to enhance the stability of the overall structure. The crossbar or platform at the upper guide frame provides convenience for the installation of radar, communication equipment, etc. However, the special shape of the lower part of the large mast provides stable support while also bringing difficulties to the operation of hoisting and fixing. In addition, in order to ensure that the signal transmission of the equipment is not affected, the structural wall of the large mast is designed to be relatively thin. In addition, in order to ensure the integrity of the large mast, welding is not allowed on the large mast, and lifting rings cannot be installed, which makes the traditional welding and lifting ring installation methods impractical on large masts, which undoubtedly increases the difficulty of mast hoisting and installation. At the same time, since the equipment carried are all high-value equipment, the installation and hoisting of large masts also need to ensure the accurate installation and positioning of large masts while ensuring the safety of the equipment.

[0004] After searching, the existing Chinese utility model application document with announcement number CN208916607U discloses a large-scale component lifting and positioning auxiliary device, "including a clamping device, an upper ring is installed on the upper part of the clamping device, the upper ring is connected to a connecting block, a lifting plate is installed on the upper part of the connecting block, a hydraulic telescopic rod is connected to the lower part of the connecting block, the hydraulic telescopic rod is connected to the lower ring, an anti-skid pad is installed inside the upper ring, the anti-skid pad is connected to a lifting piece, a knob device is installed on the upper ring, a telescopic device is installed on the upper ring, a lifting device is connected to the lifting plate, the lifting plate is connected to a steel rope, the steel rope is connected to a roller, a winding device is installed on the right side of the roller, a crossbeam is installed on the upper side of the winding device, the crossbeam is connected to a support rod, and the lower side of the support rod The device is equipped with a base, and although it can mechanically clamp large components and lift and move them, it has high requirements on the shape and size of the object being lifted, and is only suitable for cylindrical objects with regular shapes. In addition, since the device uses a hydraulic telescopic rod to connect and adjust the upper and lower circles, and the upper and lower circles of the device are fixedly connected to the object being lifted in the form of a clamp, it is insufficient in stability. During the lifting and moving process, there is a possibility of damage to the telescopic rod and the object being lifted falling, which poses a construction risk. In addition, since the two ends of the hydraulic telescopic rod are respectively fixed to the upper and lower circles, it cannot be disassembled. Therefore, as a whole connected up and down, the device is easily susceptible to contact friction or collision with the object being lifted due to the shaking of the crane rope when separated from the object being lifted, and has certain limitations.

[0005] Therefore, there is an urgent need for a new hoisting device and hoisting method for large masts to solve the above problems and achieve the purpose of improving the safety and accuracy of hoisting. Summary of the invention

[0006] In order to solve the problems existing in the prior art mentioned above, the purpose of the present invention is to provide a lifting device and a lifting method for large masts. The present invention controls the hydraulic telescopic round rod and the hydraulic telescopic square bar to perform telescopic movement respectively through a hydraulic control device, and can stably fix the upper and lower hydraulic frames on the large mast, and provide lifting points for lifting and positioning of the mast, thereby improving the accuracy and installation quality of the lifting of large masts; in addition, through telescopic adjustment and flexible adjustment of the distance between the upper and lower hydraulic frames, it can adapt to masts of different sizes and shapes, simplify the construction process, improve positioning efficiency and accuracy, and have wide versatility. At the same time, by controlling the telescopic adjustment of the round rod and the square bar respectively, interference and collision between the device and the mast are avoided, thereby improving the safety and reliability of construction, reducing risks, and ensuring the stable operation of equipment carried on the mast.

[0007] In order to achieve the above-mentioned purpose and other related purposes, the present invention adopts the following technical solutions:

[0008] In a first aspect of the present invention, there is provided a hoisting device for a large mast, comprising an upper hydraulic frame, a lower hydraulic frame and a hydraulic control device, wherein the upper hydraulic frame and the lower hydraulic frame are arranged in parallel and parallel to the ground, and the upper and lower hydraulic frames are fixedly connected by a detachable connecting rod, and the upper hydraulic frame and the lower hydraulic frame are both square frame structures;

[0009] The upper hydraulic frame comprises an upper lifting ring, a lower lifting ring and a hydraulic telescopic round rod; the hydraulic telescopic round rod radiates toward the center and is evenly distributed on the inner side of the upper hydraulic frame, the outer end of the hydraulic telescopic round rod is closed and connected to the inner side wall of the upper hydraulic frame, and an arc-shaped elastic member is fixed to the inner side end of the hydraulic telescopic round rod; the hydraulic telescopic round rod comprises a first telescopic rod and a second telescopic rod, the first telescopic rod is fixedly connected to the inner side wall of the upper hydraulic frame, and the second telescopic rod is movably connected to the inner side wall of the upper hydraulic frame through a rotating shaft, so that the second telescopic rod can rotate downward; the upper end surfaces of the four corners of the upper hydraulic frame are each fixedly connected with an upper lifting ring, and the lower end surfaces of the four corners of the upper hydraulic frame are each fixedly connected with a lower lifting ring;

[0010] The lower hydraulic frame is provided with an inner lifting ring, an outer lifting ring and a hydraulic telescopic square bar, and a rectangular convex body is extended outwardly from the corners of the four walls of the lower hydraulic frame; the hydraulic telescopic square bar radiates toward the center and is evenly distributed on the inner side of the lower hydraulic frame, the outer end of the hydraulic telescopic square bar penetrates the inner side wall of the lower hydraulic frame and is telescopically accommodated in the rectangular convex body, and the inner end of the hydraulic telescopic square bar is movably connected with an arc-shaped support hand; the hydraulic telescopic square bar includes a third telescopic rod and a fourth telescopic rod, and the inner ends of the third telescopic rod and the fourth telescopic rod are both provided with a movable connection groove, the third telescopic rod and the fourth telescopic rod are parallel to each other, and an arc-shaped support hand is movably connected between the third telescopic rod and the fourth telescopic rod through the movable connection groove; the upper end surfaces of the four corners of the lower hydraulic frame are each fixedly connected with an inner lifting ring, the position of the inner lifting ring is opposite to the position of the lower lifting ring, and the inner lifting rings and the lower lifting rings opposite to each other are fixedly connected by the connecting rod, and the upper end surfaces of the rectangular convex bodies located at the four corners of the lower hydraulic frame are each fixedly connected with an outer lifting ring;

[0011] The hydraulic control device is used to control the hydraulic telescopic round rod and the hydraulic telescopic square bar to perform telescopic activities; the hydraulic control device includes a first controller and a second controller, the hydraulic telescopic round rods are connected in series and connected to the first controller, the first controller is installed on the outer side frame of the upper hydraulic frame, and is used to control the telescopic length of each hydraulic telescopic round rod; the third telescopic rods are connected in series, the fourth telescopic rods are connected in series, and the third telescopic rods and the fourth telescopic rods are connected in parallel and connected to the second controller, the second controller is installed on the outer side frame of the lower hydraulic frame, and is used to synchronously control and parallelly control the telescopic length of each third telescopic rod and the fourth telescopic rod, driving the arc support hand to rotate, when the arc center of the arc support hand faces directly upward, the arc support hand is in a grasping state, and when the arc center of the arc support hand faces forward and upward, the arc support hand is in a released state.

[0012] As a preferred technical solution, the circular inner diameter formed when the hydraulic telescopic round rod and the hydraulic telescopic square bar are extended to their longest length is smaller than the minimum outer diameter of the large mast, and the circular inner diameter formed when the hydraulic telescopic round rod and the hydraulic telescopic square bar are contracted to their shortest length is larger than the maximum outer diameter of the large mast.

[0013] As a preferred technical solution, the projection of the inner lifting ring coincides with the projection of the lower lifting ring, ensuring that the connecting rod installed between the inner lifting ring and the lower lifting ring is perpendicular to the ground.

[0014] As a preferred technical solution, the arc-shaped support arm is in an L-shaped hook shape, including a vertical section and a horizontal section. A circular hole is provided on the horizontal section, and the arc-shaped support arm is movably connected to the movable connecting groove of the fourth telescopic rod through the circular hole, so that the arc-shaped support arm can rotate around the central axis of the circular hole; an elliptical groove is provided on the vertical section, and the arc-shaped support arm is movably connected to the movable connecting groove of the third telescopic rod through the elliptical groove, so that the arc-shaped support arm can slide in the elliptical groove.

[0015] As a preferred technical solution, the number of the first telescopic rods and the number of the second telescopic rods are four, each of which is respectively arranged at the midpoint of the four sides of the upper hydraulic frame, and each of the second telescopic rods is respectively arranged at the four corners of the upper hydraulic frame, so that the second telescopic rods are opposite to each other to form diagonals.

[0016] As a preferred technical solution, the number of the third telescopic rods and the fourth telescopic rods is four each, and the third telescopic rods and the fourth telescopic rods are respectively arranged at the four corners of the upper hydraulic frame, forming diagonals in pairs, and the third telescopic rods and the fourth telescopic rods at the same corner are parallel up and down.

[0017] A second aspect of the present invention provides a method for hoisting a large mast, using the hoisting device for a large mast according to any one of claims 1 to 6, comprising the following steps:

[0018] S1. Place the large mast in the lower hydraulic frame and the upper hydraulic frame, and adjust the hydraulic telescopic square bars and the hydraulic telescopic round bars in sequence according to the outer diameter of the lower structure of the large mast, so that the lower hydraulic frame and the upper hydraulic frame are installed and fixed on the large mast;

[0019] S2. Connect the upper hydraulic frame and the lower hydraulic frame through the connecting rod, and use the upper lifting ring and the outer lifting ring to hoist and position the large mast;

[0020] S3. After the lifting and positioning is completed, the lifting device is detached from the large mast, and the connecting rod, upper hydraulic frame and lower hydraulic frame are removed in sequence to complete the lifting of the large mast.

[0021] As a preferred technical solution, step S1 includes the following specific steps:

[0022] S1-1. Install the lower hydraulic frame at the lower end surface of the lower structure of the large mast: according to the outer diameter of the lower end surface of the lower structure of the large mast, extend and retract the hydraulic telescopic square bar to a suitable length through the hydraulic control device, and adjust the arc center position of the arc support so that the arc center of the arc support faces upward to grasp the lower end surface of the large mast;

[0023] S1-2. Install the upper hydraulic frame near the upper end surface of the lower structure of the large mast: according to the outer diameter of the lower structure of the large mast near the upper end surface, the hydraulic telescopic round rod is extended and retracted to a suitable length through the hydraulic control device so that the arc-shaped elastic member is close to the outer wall of the large mast.

[0024] As a preferred technical solution, step S2 includes the following specific steps: determining the length of the connecting rod according to the distance from the upper hydraulic frame to the lower hydraulic frame of the large mast, and then detachably connecting the two ends of the connecting rod to the lower lifting ring and the inner lifting ring respectively, so that the upper hydraulic frame and the lower hydraulic frame are connected to form a whole; by passing the lifting rope through each upper lifting ring and the outer lifting ring and pulling it up at the same time, the lifting device is lifted and the large mast is driven to move until the large mast is lifted to the prepared installation position for positioning.

[0025] As a preferred technical solution, step S3 includes the following specific steps:

[0026] S3-1. Remove the connecting rod from the lower lifting ring and the inner lifting ring;

[0027] S3-2. Remove the upper hydraulic frame and the lower hydraulic frame from top to bottom in sequence: when removing the upper hydraulic frame, retract the hydraulic telescopic round rod, adjust the angle of the upper hydraulic frame, and lift it off from the top of the large mast; when removing the lower hydraulic frame, retract the hydraulic telescopic square bar, adjust the angle of the lower hydraulic frame, and lift it off from the top of the large mast.

[0028] As described above, the present invention has the following beneficial effects:

[0029] (1) The present invention provides a lifting device and a lifting method for a large mast, which effectively solve the technical problems of lifting and positioning installation of a large mast by simplifying the operation process and improving the positioning accuracy. The structural design focuses on user experience, making the operation process simple and intuitive, while ensuring the accuracy of mast positioning, solving the problem of difficult positioning of large masts and improving the installation quality. In addition, the present invention fully considers safety factors in its design, avoids interference and collision between the structure and the large mast, enhances safety and reliability, and reduces construction risks.

[0030] (2) The hoisting device for large masts of the present invention can be produced in various sizes according to production requirements, and the usable inner diameter can be controlled by freely extending the length, thereby meeting the installation and hoisting requirements of any large masts of different shapes of various types of ships, wherein the different shapes include but are not limited to square, round, polyhedral, etc., and are not limited to masts of specific types or sizes, showing strong adaptability and versatility, thereby simplifying the hoisting construction process of large masts and solving the problem of inconvenience in hoisting construction in traditional methods. On top of this, through improved design, it also reduces the potential safety hazards in the hoisting process and improves the positioning efficiency and accuracy.

[0031] (3) The hoisting device for large masts of the present invention has a simple structural design and a small number of parts, which simplifies the process flow and facilitates maintenance and operation. In addition, the device adopts common and easy-to-produce components, so that the device can be used repeatedly to avoid waste of resources such as materials. At the same time, since the production cost of the device is relatively low and its reusable characteristics can effectively reduce the long-term use cost, the device can be promoted and widely used in the process of shipbuilding, and has a good industrial application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the hoisting device of the present invention installed on a large mast.

[0033] Figure 2 yes Figure 1 Schematic diagram of the overall structure of the lifting device after the large mast is hidden.

[0034] Figure 3It is a schematic diagram of the structure when the hydraulic telescopic round rod and the hydraulic telescopic square bar of the present invention are retracted to the shortest.

[0035] Figure 4 It is a dynamic schematic diagram of the telescopic movement of the hydraulic telescopic round rod of the upper hydraulic frame in the present invention.

[0036] Figure 5 It is a structural schematic diagram of the arc-shaped support handle at the inner end of the hydraulic telescopic square bar in the present invention when it is in a released state.

[0037] Figure 6 It is a structural schematic diagram of the arc-shaped support handle at the inner end of the hydraulic telescopic square bar of the present invention when it is in a grasping state.

[0038] Figure 7 It is a schematic diagram of the telescopic movement of the hydraulically-retractable square bars of the lower hydraulic frame of the present invention.

[0039] Among them, the specific descriptions of the accompanying drawings are as follows: 1. large mast; 2. upper hydraulic frame; 21. upper lifting ring; 22. lower lifting ring; 23. hydraulic telescopic round rod; 231. first telescopic rod; 232. second telescopic rod; 233. rotating shaft; 234. elastic member; 3. lower hydraulic frame; 31. rectangular convex body; 32. inner lifting ring; 33. outer lifting ring; 34. hydraulic telescopic square bar; 341. third telescopic rod; 342. fourth telescopic rod; 343. arc-shaped support handle; 3431. elliptical groove; 3432. circular hole; 41. first controller; 42. second controller; 5. connecting rod. DETAILED DESCRIPTION

[0040] In order to better understand the purpose, structure and function of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, it should be noted that the positional relationships indicated by terms such as “longitudinal”, “lateral”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc. cited in this specification are based on the positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] Example 1

[0043] like Figures 1 to 7As shown, this embodiment provides a lifting device for a large mast, including an upper hydraulic frame 2, a lower hydraulic frame 3 and a hydraulic control device. The upper hydraulic frame 2 and the lower hydraulic frame 3 are arranged in parallel and parallel to the ground. The upper hydraulic frame 2 and the lower hydraulic frame 3 are detachably fixed by a connecting rod 5, so that the upper hydraulic frame 2 and the lower hydraulic frame 3 are connected as a whole to form a complete lifting device; in this embodiment, the upper hydraulic frame 2 and the lower hydraulic frame 3 are square frame structures, and the corners of the four surrounding walls of the upper hydraulic frame 2 and the lower hydraulic frame 3 are provided with inward chamfers.

[0044] The upper hydraulic frame 2 includes an upper lifting ring 21, a lower lifting ring 22 and a hydraulic telescopic round rod 23. The upper end surfaces of the four corners of the upper hydraulic frame 2 are each fixedly connected with an upper lifting ring 21 for providing a lifting point; the lower end surfaces of the four corners of the upper hydraulic frame 2 are each fixedly connected with a lower lifting ring 22 for providing a connection point with the lower hydraulic frame 3.

[0045] The hydraulic telescopic round rod 23 radiates toward the center and is evenly distributed on the inner side of the upper hydraulic frame 2. The outer end of the hydraulic telescopic round rod 23 is closed and connected to the inner wall of the upper hydraulic frame 2, so that the hydraulic telescopic round rod 23 and the upper hydraulic frame 2 form a complete hydraulic device. An arc-shaped elastic member 234 is fixed to the inner end of the hydraulic telescopic round rod 23. In this embodiment, the elastic member 234 is a rubber strip. By installing the rubber strip on the head end of the hydraulic telescopic round rod 23, the contact friction with the large mast 1 can be effectively increased to ensure the stability of the lifting process. At the same time, since the rubber strip is soft, it can provide buffering protection to avoid damage to the large mast 1 itself or the equipment installed on the large mast 1.

[0046] In the present embodiment, the hydraulic telescopic round rod 23 comprises a first telescopic rod 231 and a second telescopic rod 232, wherein the first telescopic rod 231 is fixedly connected to the inner side wall of the upper hydraulic frame 2, and the second telescopic rod 232 is movably connected to the inner side wall of the upper hydraulic frame 2 through a rotating shaft 233, so that the second telescopic rod 232 can be rotated downward, which is convenient for the disassembly of the lifting device. At the same time, during the disassembly process, by rotating the second telescopic rod 232 downward and retracting it, the risk of contact and collision between the overall structure of the upper hydraulic frame 2 and the large mast 1 can be reduced; in the present embodiment, the number of the first telescopic rod 231 and the second telescopic rod 232 is four respectively, and each first telescopic rod 231 is respectively arranged at the midpoint of the four sides of the upper hydraulic frame 2, and each second telescopic rod 232 is respectively arranged at the four corners of the upper hydraulic frame 2, so that the second telescopic rods 232 form diagonals relative to each other, that is, there are a total of eight hydraulic telescopic round rods 23 and they are respectively arranged in eight directions.

[0047] The lower hydraulic frame 3 is provided with an inner lifting ring 32, an outer lifting ring 33 and a hydraulic telescopic square bar 34. A rectangular protrusion 31 is extended outward from the corners of the four walls of the lower hydraulic frame 3. The rectangular protrusion 31 is used to provide a storage space for the hydraulic telescopic square bar 34 and a space for the outer lifting ring 33 to provide a lifting point. The upper end surface of each of the four corners of the lower hydraulic frame 3 is fixedly connected with an inner lifting ring 32 to provide a connection point with the upper hydraulic frame 2. The position of the inner lifting ring 32 is opposite to the position of the lower lifting ring 22, and the inner lifting ring 32 and the lower lifting ring 22 are fixedly connected by the connecting rod 5. In this embodiment, the connecting rod 5 adopts a detachable tie bar, and the length of the detachable tie bar can be selected according to the lower height of the large mast 1. In this embodiment, the projection of the inner lifting ring 32 coincides with the projection of the lower lifting ring 22, so that the connecting rod 5 installed between the inner lifting ring 32 and the lower lifting ring 22 is perpendicular to the ground, providing better support for the lifting and hoisting of the large mast 1; the upper end faces of the rectangular protrusions 31 located at the four corners of the lower hydraulic frame 3 are each fixedly connected to an outer lifting ring 33 for providing a lifting point.

[0048] The hydraulic telescopic square bar 34 radiates toward the center and is evenly distributed on the inner side of the lower hydraulic frame 3. The outer end of the hydraulic telescopic square bar 34 passes through the inner wall of the lower hydraulic frame 3 and is telescopically accommodated in the rectangular convex body 31, so that the hydraulic telescopic square bar 34 and the lower hydraulic frame 3 form a complete hydraulic device. The inner end of the hydraulic telescopic square bar 34 is movably connected to an arc-shaped support arm 343. In this embodiment, the hydraulic telescopic square bar 34 includes a third telescopic rod 341 and a fourth telescopic rod 342, and the inner ends of the third telescopic rod 341 and the fourth telescopic rod 342 are both provided with a movable connection groove. The number of the third telescopic rod 341 and the fourth telescopic rod 342 is four, and the third telescopic rod 341 and the fourth telescopic rod 342 are respectively arranged at the four corners of the upper hydraulic frame 2, and two of them are opposite to each other to form a diagonal. The third telescopic rod 341 and the fourth telescopic rod 342 at the same corner are parallel to each other, and an arc-shaped support hand 343 is movably connected between the third telescopic rod 341 and the fourth telescopic rod 342 through the movable connection groove; that is, the hydraulic telescopic square bars 34 are eight in total, divided into four groups of two in total that are parallel to each other, and each group is arranged in four directions.

[0049] The arc-shaped support hand 343 includes a vertical section and a horizontal section, and the arc-shaped support hand 343 is an L-shaped hook as a whole; a circular hole 3432 is provided on the horizontal section, and the arc-shaped support hand 343 is movably connected to the movable connection groove of the fourth telescopic rod 342 through the circular hole 3432, so that the arc-shaped support hand 343 can rotate around the central axis of the circular hole 3432; an elliptical groove 3431 is provided on the vertical section, and the arc-shaped support hand 343 is movably connected to the movable connection groove of the third telescopic rod 341 through the elliptical groove 3431, so that the arc-shaped support hand 343 can slide in the elliptical groove 3431.

[0050] The hydraulic control device is used to control the hydraulic telescopic round rod 23 and the hydraulic telescopic square bar 34 to perform telescopic activities toward the center of the upper hydraulic frame 2 and the lower hydraulic frame 3, respectively, so as to be applicable to large masts 1 of different sizes. When the hydraulic telescopic round rod 23 and the hydraulic telescopic square bar 34 are extended to the longest, the circular inner diameter formed is smaller than the minimum outer diameter of the large mast 1, thereby ensuring the stability between the arc elastic member 234 and the large mast 1 when the arc support 343 is lifted; when the hydraulic telescopic round rod 23 and the hydraulic telescopic square bar 34 are contracted to the shortest, the circular inner diameter formed is larger than the maximum outer diameter of the large mast 1, thereby ensuring that the device and the large mast 1 do not interfere with each other during installation and disassembly, avoiding the risk of interference and collision with the large mast 1 during disassembly.

[0051] The hydraulic control device includes a first controller 41 and a second controller 42. The hydraulic telescopic round rods 23 are connected in series and connected to the first controller 41. The first controller 41 is installed on the outer side frame of the upper hydraulic frame 2 and is used to control the telescopic length of each hydraulic telescopic round rod 23. By controlling the hydraulic telescopic round rod 23 to synchronously telescope in the direction close to the center or away from the center, the arc-shaped elastic member 234 is formed into a circle, so as to better fit and fix the upper end of the large mast 1. The third telescopic rods 341 are connected in series, the fourth telescopic rods 342 are connected in series, and the third telescopic rods 341 and the fourth telescopic rods 342 are connected in parallel and connected to the second controller 42. The second controller 42 is installed on the outer side frame of the lower hydraulic frame 3, and is used to control the telescopic length of each hydraulic telescopic square bar 34, by controlling the third telescopic rod 341 and the fourth telescopic rod 342 to synchronously telescope in the direction close to the center or away from the center, and the third telescopic rod 341 can be controlled to further telescope to drive the arc support 343 to rotate inward to grab or outward to release, so as to realize the synchronous control and parallel step-by-step control of the telescopic length of the third telescopic rod 341 and the fourth telescopic rod 342, such as Figure 6 As shown, when the arc center of the arc-shaped support hand 343 faces upward, the arc-shaped support hand 343 is in a grasping state. Figure 5As shown, when the arc center of the arc-shaped support arm 343 faces forward and upward, the arc-shaped support arm 343 is in a released state.

[0052] Example 2

[0053] like Figure 1 As shown, this embodiment provides a hoisting method for a large mast using a hoisting device according to embodiment 1, comprising the following steps:

[0054] S1. Place the large mast 1 in the lower hydraulic frame 3 and the upper hydraulic frame 2, and adjust the hydraulic telescopic square bar 34 and the hydraulic telescopic round rod 23 in sequence according to the size of the large mast 1, so that the lower hydraulic frame 3 and the upper hydraulic frame 2 are installed and fixed on the large mast 1.

[0055] S1-1. Install the lower hydraulic frame 3 at the lower end surface of the lower structure of the large mast 1: according to the outer diameter of the lower end surface of the lower structure of the large mast 1, the hydraulic telescopic square bar 34 is extended and retracted to an appropriate length through the hydraulic control device, and the arc center position of the arc support arm 343 is adjusted so that the arc center of the arc support arm 343 faces upward to grasp the lower end surface of the large mast 1, thereby supporting the large mast 1 and keeping the large mast 1 upright.

[0056] Specifically, the lower hydraulic frame 3 is moved to be flush with the lower end surface of the lower structure of the large mast 1, and the second controller 42 is used to control the third telescopic rods 341 and the fourth telescopic rods 342 located at the four corners to extend simultaneously toward the center of the lower hydraulic frame 3 until the vertical section of the arc-shaped support arm 343 contacts the outer edge of the lower end surface. Then, the second controller 42 is used to control only all the third telescopic rods 341 to contract simultaneously, so that each arc-shaped support arm 343 is flipped around the central axis of the circular hole 3432 until the arc centers of all the arc-shaped support arms 343 face upward and are fixed with the clamps of the lower structure of the large mast 1, thereby completing the installation of the lower hydraulic frame 3 at the lower end surface of the lower structure of the large mast 1.

[0057] S1-2. Install the upper hydraulic frame 2 on the lower structure of the large mast 1 near the upper end surface: according to the outer diameter size of the lower structure of the large mast 1 near the upper end surface, the hydraulic telescopic round rod 23 is extended and retracted to a suitable length through the hydraulic control device, so that the arc-shaped elastic member 234 is in full contact with the outer side wall of the lower structure of the large mast 1, ensuring that the large mast 1 remains upright.

[0058] Specifically, the upper hydraulic frame 2 is moved to be flush with the bottom end surface of the large mast 1, and the first controller 41 is used to control the first telescopic rod 231 and the second telescopic rod 232 to extend toward the center of the upper hydraulic frame 2 at the same time until the rubber strip clamp is fixed to the outer wall of the lower structure of the large mast 1, thereby completing the installation of the lower hydraulic frame 3 near the upper end surface of the lower structure of the large mast 1.

[0059] S2. Connect the upper hydraulic frame 2 and the lower hydraulic frame 3 through the connecting rod 5, and use the upper lifting ring 21 and the outer lifting ring 33 to hoist and position the large mast 1: determine the length of the connecting rod 5 according to the distance from the upper hydraulic frame 2 to the lower hydraulic frame 3 of the large mast 1, and then detachably connect the two ends of the connecting rod 5 to the lower lifting ring 22 and the inner lifting ring 32, so that the upper hydraulic frame 2 and the lower hydraulic frame 3 are connected to form a whole; in this embodiment, the lower lifting ring 22 and the inner lifting ring 32 are connected by a detachable pull bar. Insert the lifting rope of the crane into each upper lifting ring 21 and the outer lifting ring 33 to ensure that the lifting device can be safely lifted and moved, and then pull the lifting rope upward at the same time to lift the lifting device and drive the large mast 1 to move, until the large mast 1 is lifted to the prepared installation position for positioning, so as to ensure the accuracy and safety of the installation.

[0060] S3. After the hoisting positioning is completed, the hoisting device is detached from the large mast 1, and the connecting rod 5, the upper hydraulic frame 2 and the lower hydraulic frame 3 are removed in sequence to complete the hoisting of the large mast 1.

[0061] S3-1, removing the connecting rod 5 from the lower lifting ring 22 and the inner lifting ring 32: the detachable tie rod is detached by opening the connection between the detachable tie rod and the lower lifting ring 22 and the inner lifting ring 32 respectively.

[0062] S3-2, remove the upper hydraulic frame 2 and the lower hydraulic frame 3 from top to bottom:

[0063] When removing the upper hydraulic frame 2, after the hydraulic telescopic round rod 23 is retracted, the angle of the upper hydraulic frame 2 is adjusted, and the upper hydraulic frame 2 is lifted off from the large mast 1. Specifically, first, the first controller 41 is used to control the first telescopic rod 231 and the second telescopic rod 232 to be simultaneously retracted in a direction away from the center of the upper hydraulic frame 2 until the first telescopic rod 231 and the second telescopic rod 232 are retracted to the shortest, and then the second telescopic rod 232 is rotated to the lowest position around the rotating shaft 233, and then the angle of the upper hydraulic frame 2 is adjusted so that the first telescopic rod 231 avoids collision and interference with the guide frame of the large mast 1, and the upper hydraulic frame 2 is lifted off from the large mast 1 by the lifting rope connected to the upper lifting ring 21.

[0064] When removing the lower hydraulic frame 3, after contracting the hydraulic telescopic square bar 34, adjust the angle of the lower hydraulic frame 3, and lift it off the upper hydraulic frame 2 from the large mast 1. Specifically, first, the second controller 42 controls only all the third telescopic rods 341 to extend outward at the same time, so that each arc support 343 turns around the central axis of the circular hole 3432, until the arc center of all the arc support 343 is restored to face forward and upward, and the clamp fixing point with the lower structure of the large mast 1 is loosened, and then, as shown in FIG. Figure 7As shown, the second controller 42 controls the third telescopic rods 341 and the fourth telescopic rods 342 located at the four corners to simultaneously retract in the direction away from the center of the lower hydraulic frame 3 until the third telescopic rods 341 and the fourth telescopic rods 342 are retracted to the shortest. Subsequently, the angle of the lower hydraulic frame 3 is adjusted to prevent the third telescopic rods 341 and the fourth telescopic rods 342 from colliding and interfering with the guide frame of the large mast 1, and the lower hydraulic frame 3 is lifted off from above the large mast 1 by a lifting rope connected to the outer lifting ring 33.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A hoisting device for a large mast, characterized in that: The hydraulic system comprises an upper hydraulic frame (2), a lower hydraulic frame (3) and a hydraulic control device, wherein the upper hydraulic frame (2) and the lower hydraulic frame (3) are arranged in parallel and parallel to the ground, and the upper and lower hydraulic frames (3) are fixedly connected via a detachable connecting rod (5), and the upper hydraulic frame (2) and the lower hydraulic frame (3) are both square frame structures; The upper hydraulic frame (2) comprises an upper lifting ring (21), a lower lifting ring (22) and a hydraulic telescopic round rod (23); the hydraulic telescopic round rod (23) radiates toward the center and is evenly distributed on the inner side of the upper hydraulic frame (2); the outer end of the hydraulic telescopic round rod (23) is closed and connected to the inner side wall of the upper hydraulic frame (2); the inner side end of the hydraulic telescopic round rod (23) is fixed with an arc-shaped elastic member (234); the hydraulic telescopic round rod (23) comprises a first telescopic rod (231) and a second telescopic rod (234). two telescopic rods (232), the first telescopic rod (231) being fixedly connected to the inner side wall of the upper hydraulic frame (2), and the second telescopic rod (232) being movably connected to the inner side wall of the upper hydraulic frame (2) via a rotating shaft (233), so that the second telescopic rod (232) can rotate downward; the upper end surfaces of the four corners of the upper hydraulic frame (2) are each fixedly connected to an upper lifting ring (21), and the lower end surfaces of the four corners of the upper hydraulic frame (2) are each fixedly connected to a lower lifting ring (22); The lower hydraulic frame (3) is provided with an inner lifting ring (32), an outer lifting ring (33) and a hydraulic telescopic square bar (34); rectangular convex bodies (31) are provided on the corners of the four walls of the lower hydraulic frame (3) extending outward; the hydraulic telescopic square bars (34) radiate toward the center and are evenly distributed on the inner side of the lower hydraulic frame (3); the outer ends of the hydraulic telescopic square bars (34) penetrate the inner side walls of the lower hydraulic frame (3) and are telescopically accommodated in the rectangular convex bodies (31); the inner ends of the hydraulic telescopic square bars (34) are movably connected to an arc-shaped support handle (343); the hydraulic telescopic square bar (34) includes a third telescopic rod (341) and a fourth telescopic rod (342); the third telescopic rod (341) and the fourth telescopic rod (342) are connected to the lower hydraulic frame (3) and the hydraulic telescopic square bar (343) are connected to the lower hydraulic frame (3) and the hydraulic telescopic square bar (34) is ... The inner side ends of the lower hydraulic frame (3) are provided with movable connection grooves, the third telescopic rod (341) and the fourth telescopic rod (342) are parallel to each other, and an arc-shaped support (343) is movably connected between the third telescopic rod (341) and the fourth telescopic rod (342) through the movable connection groove; the upper end surfaces of the four corners of the lower hydraulic frame (3) are each fixedly connected to an inner lifting ring (32), the position of the inner lifting ring (32) is opposite to the position of the lower lifting ring (22), and the inner lifting rings (32) and the lower lifting ring (22) opposite to each other are fixedly connected through the connecting rod (5), and the upper end surfaces of the rectangular protrusions (31) located at the four corners of the lower hydraulic frame (3) are each fixedly connected to an outer lifting ring (33); The hydraulic control device is used to control the hydraulic telescopic round rod (23) and the hydraulic telescopic square bar (34) to perform telescopic activities; the hydraulic control device comprises a first controller (41) and a second controller (42); the hydraulic telescopic round rods (23) are connected in series and connected to the first controller (41); the first controller (41) is installed on the outer side frame of the upper hydraulic frame (2) and is used to control the telescopic length of each hydraulic telescopic round rod (23); the third telescopic rods (341) are connected in series, the fourth telescopic rods (342) are connected in series, and the third telescopic rods (341) are connected in series. The rod (341) and each fourth telescopic rod (342) are connected in parallel and connected to the second controller (42). The second controller (42) is installed on the outer side frame of the lower hydraulic frame (3) and is used to synchronously control and parallelly control the telescopic length of each third telescopic rod (341) and the fourth telescopic rod (342), thereby driving the arc-shaped support hand (343) to rotate. When the arc center of the arc-shaped support hand (343) faces upward, the arc-shaped support hand (343) is in a grasping state. When the arc center of the arc-shaped support hand (343) faces forward and upward, the arc-shaped support hand (343) is in a released state.

2. A hoisting device for a large mast according to claim 1, characterized in that: When the hydraulic telescopic round rod (23) and the hydraulic telescopic square bar (34) are extended to their longest length, the circular inner diameter formed is smaller than the minimum outer diameter of the large mast (1); when the hydraulic telescopic round rod (23) and the hydraulic telescopic square bar (34) are contracted to their shortest length, the circular inner diameter formed is larger than the maximum outer diameter of the large mast (1).

3. A hoisting device for a large mast according to claim 1, characterized in that: The projection of the inner lifting ring (32) coincides with the projection of the lower lifting ring (22), ensuring that the connecting rod (5) installed between the inner lifting ring (32) and the lower lifting ring (22) is perpendicular to the ground.

4. The hoisting device for a large mast according to claim 1, characterized in that: The arc-shaped support hand (343) is in an L-shaped hook shape, comprising a vertical section and a horizontal section, the horizontal section is provided with a circular hole (3432), the arc-shaped support hand (343) is movably connected to the movable connection groove of the fourth telescopic rod (342) through the circular hole (3432), so that the arc-shaped support hand (343) can rotate around the central axis of the circular hole (3432); the vertical section is provided with an elliptical groove (3431), the arc-shaped support hand (343) is movably connected to the movable connection groove of the third telescopic rod (341) through the elliptical groove (3431), so that the arc-shaped support hand (343) can slide in the elliptical groove (3431).

5. The hoisting device for a large mast according to claim 1, characterized in that: The number of the first telescopic rods (231) and the number of the second telescopic rods (232) are four, respectively; each first telescopic rod (231) is arranged at the midpoint of the four sides of the upper hydraulic frame (2), and each second telescopic rod (232) is arranged at the four corners of the upper hydraulic frame (2), so that the second telescopic rods (232) are arranged in pairs to form diagonal positions.

6. The hoisting device for a large mast according to claim 1, characterized in that: The number of the third telescopic rods (341) and the number of the fourth telescopic rods (342) are four, respectively. The third telescopic rods (341) and the fourth telescopic rods (342) are respectively arranged at the four corners of the upper hydraulic frame (2), and are opposite to each other to form diagonals. The third telescopic rods (341) and the fourth telescopic rods (342) at the same corner are vertically parallel.

7. The hoisting device for a large mast according to claim 1, characterized in that: The connecting rod (5) adopts a detachable tie rod, and the length of the detachable tie rod is selected according to the lower height of the large mast (1).

8. A method for hoisting a large mast, using the hoisting device for a large mast according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, placing the large mast (1) in the lower hydraulic frame (3) and the upper hydraulic frame (2), and adjusting the hydraulic telescopic square bar (34) and the hydraulic telescopic round rod (23) in sequence according to the outer diameter of the lower structure of the large mast (1), so that the lower hydraulic frame (3) and the upper hydraulic frame (2) are installed and fixed on the large mast (1); S2, connecting the upper hydraulic frame (2) and the lower hydraulic frame (3) via a connecting rod (5), and using an upper lifting ring (21) and an outer lifting ring (33) to lift and position the large mast (1); S3. After the lifting and positioning is completed, the lifting device is detached from the large mast (1), and the connecting rod (5), the upper hydraulic frame (2) and the lower hydraulic frame (3) are removed in sequence to complete the lifting of the large mast (1).

9. A method for hoisting a large mast according to claim 8, characterized in that: The step S1 comprises the following specific steps: S1-1. Installing a lower hydraulic frame (3) at the lower end surface of the lower structure of the large mast (1): according to the outer diameter of the lower end surface of the lower structure of the large mast (1), the hydraulic telescopic square bar (34) is extended and retracted to a suitable length through a hydraulic control device, and the arc center position of the arc support hand (343) is adjusted so that the arc center of the arc support hand (343) faces upward to grasp the lower end surface of the large mast (1); S1-2. Installing an upper hydraulic frame (2) near the upper end surface of the lower structure of the large mast (1): Based on the outer diameter of the lower structure of the large mast (1) near the upper end surface, the hydraulic telescopic round rod (23) is extended and retracted to a suitable length through the hydraulic control device, so that the arc-shaped elastic member (234) is closely attached to the outer wall of the large mast (1).

10. A method for hoisting a large mast according to claim 8, characterized in that: The step S2 comprises the following specific steps: determining the length of the connecting rod (5) according to the distance between the upper hydraulic frame (2) and the lower hydraulic frame (3) of the large mast (1), and then detachably connecting the two ends of the connecting rod (5) to the lower lifting ring (22) and the inner lifting ring (32), respectively, so that the upper hydraulic frame (2) and the lower hydraulic frame (3) are connected to form a whole; and lifting the lifting device and driving the large mast (1) to move by inserting the lifting rope into each upper lifting ring (21) and the outer lifting ring (33) and pulling them upward at the same time, until the large mast (1) is lifted to the prepared installation position for positioning.

11. A method for hoisting a large mast according to claim 8, characterized in that: The step S3 comprises the following specific steps: S3-1, removing the connecting rod (5) from the lower lifting ring (22) and the inner lifting ring (32); S3-2, remove the upper hydraulic frame (2) and the lower hydraulic frame (3) from top to bottom in sequence: when removing the upper hydraulic frame (2), retract the hydraulic telescopic round rod (23), adjust the angle of the upper hydraulic frame (2), and lift the upper hydraulic frame (2) from above the large mast (1); when removing the lower hydraulic frame (3), retract the hydraulic telescopic square bar (34), adjust the angle of the lower hydraulic frame (3), and lift the upper hydraulic frame (2) from above the large mast (1).

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