Turnover hoisting device for large tower component

Abstract

The utility model belongs to the technical field of large-scale steel member manufacturing, and discloses a large-scale tower part overturning and hoisting device which comprises a rectangular frame, a lifting frame is slidably connected into the rectangular frame. The first sliding block is slidably connected with the lifting frame, and the second sliding block is slidably connected to the bottom of the rectangular frame. The two ends of the driving arm are hinged to the first sliding block and the second sliding block respectively. The middle shaft is connected into a vertical guide groove fixedly formed in the middle of the rectangular frame in a sliding mode. The driving arm is arranged on the intermediate shaft in a sleeving manner; the first sliding block and the second sliding block are connected with lifting ropes respectively. According to the utility model, the two groups of lifting ropes can be synchronously and stably retracted and released in the process from a horizontal state to a vertical state of a lifted object, the operation and control are simple, the stress is balanced, even if the lifted object is completely vertical, the two groups of lifting ropes cannot be inclined and are always kept vertical, and the safety is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of large steel component manufacturing technology, and relates to a large tower component turning and hoisting device. Background Technology

[0002] Tower containers are among the most important pieces of equipment in petrochemical, chemical, and oil refining production. Tower containers are typically manufactured in sections of multiple components, which are then assembled. Individual tower components are usually cylindrical in shape, relatively long, and heavy. During manufacturing, it is necessary to flip the tower components, that is, to turn them from a horizontal position to an vertical position. This is usually done using two lifting devices, one at each end of the component. A flipping lifting device, such as the one described in patent CN205555864U, entitled "An Automatically Adjustable Tower Turning Lifting Device," has the following drawbacks: First, it is difficult for the two lifting devices to coordinate synchronously and ensure balanced load-bearing on both sets of ropes, which can easily lead to excessive stress on a single rope and breakage; second, when the object being lifted is close to vertical, the two lifting devices inevitably approach each other but cannot completely overlap, making it difficult for the object to achieve a vertical position. For example, the patent "Tilting and Lifting Equipment" with announcement number CN220264957U uses a crane to install two sliding lifting components. Its drawback is that both lifting components need to be moved and the ropes need to be retracted and extended, which makes synchronous coordination quite difficult. There is also a risk of the two sets of ropes breaking due to uneven stress. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a large tower component turning and hoisting device. The purpose is to design a coordination mechanism that can automatically balance the release and retraction of two sets of ropes for the turning of cylindrical components such as tower components, so as to ensure that the two sets of ropes are released and retracted synchronously, with balanced force, and safe and reliable.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a large tower component turning and hoisting device, comprising a rectangular frame with a lifting ring at the top; a winch is provided at the top of the rectangular frame, the end of a rope connected to the winch extends into the interior of the rectangular frame and is connected to the top of a lifting frame; the lifting frame is slidably connected inside the rectangular frame, a first slider is slidably connected to the lifting frame, and a second slider is slidably connected to the bottom of the rectangular frame; both ends of the active boom are hinged to the first slider and the second slider respectively; an intermediate shaft is slidably connected to a vertical guide groove fixed in the middle of the rectangular frame; the active boom has a shaft hole in the middle for fitting onto the intermediate shaft; the first slider and the second slider are respectively connected to lifting ropes, and the ends of the two lifting ropes are respectively connected to both ends of the tower component.

[0005] As a further optimization, the rectangular frame has a hollow cuboid outline, including a base frame formed by two bottom crossbeams and two bottom longitudinal beams connected together; four vertical columns are fixedly connected to the four corners of the base frame; a top frame formed by two top crossbeams and two top longitudinal beams connected together, with the four corners of the top frame fixedly connected to the tops of the four columns; the lifting frame includes a square frame formed by a pair of side beams and a pair of end beams connected together; sliding sleeves are fixed at the four corners of the square frame, and the four sliding sleeves are respectively fitted onto the four columns for sliding connection between the lifting frame and the rectangular frame; there are two first sliders, which are slidably connected to the two side beams respectively; there are two second sliders, which are slidably connected to the two bottom crossbeams respectively; a pair of first sliders and a pair of second sliders are used to hinge the two active arms.

[0006] As a further optimization, the bottom frame also includes two inner crossbeams, the two ends of which are fixedly connected to the two bottom longitudinal beams and arranged parallel to the two bottom crossbeams; the lifting frame also includes two inner side beams located directly above the two inner crossbeams, the two ends of which are fixedly connected to the two end beams; a third slider is slidably connected to the inner side beams, and a fourth slider is slidably connected to the inner crossbeams; it also includes two driven arms of the same length as the active arm, the driven arms are arranged crosswise with the active arm, and a through hole is provided in the middle for the intermediate shaft to pass through a pair of active arms and a pair of driven arms; the two ends of the driven arms are respectively hinged to the third slider and the fourth slider.

[0007] As a further optimization, a mounting plate is fixed to the top of the rectangular frame, the winch is mounted on the mounting plate, and the mounting plate has a channel for the rope to pass through; a lifting lug is fixed to the top of the lifting frame for connecting the rope.

[0008] As a further optimization, the top end of the guide groove is fixedly connected to the lower end of the mounting plate.

[0009] As a further optimization, the intermediate shaft has a square section in the middle for slidably inserting into the guide groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model connects the active arm with two sliders to form a parallelogram structure of the suspended object, two sets of lifting ropes and the active arm; this allows the two sets of lifting ropes to be raised and lowered synchronously and smoothly during the process of the suspended object moving from horizontal to vertical, making operation simple and the force balanced. Even when the suspended object is completely vertical, the two sets of lifting ropes will not be tilted and will always remain vertical, ensuring safety. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the planar structure of the suspended object during the turning process according to an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the planar structure of the suspended object when it is fully erected, according to an embodiment of the present invention.

[0013] Figure 3 This is a three-dimensional structural diagram of the rectangular frame according to an embodiment of the present invention;

[0014] Figure 4 This is a cross-sectional structural diagram of the block portion in the guide groove according to an embodiment of the present invention.

[0015] The correspondence between the technical features in the figure and the reference numerals is as follows: Rectangular frame 1; Lifting ring 11; Winch 12; Rope 13; Guide groove 14; Bottom frame 15; Bottom crossbeam 151; Bottom longitudinal beam 152; Inner crossbeam 153; Top frame 16; Top longitudinal beam 161; Top crossbeam 162; Column 17; Mounting plate 18; Access port 181; Lifting frame 2; Sliding sleeve 21; Side beam 22; End beam 23; Inner side beam 24; Driving boom 3; First slider 31; Second slider 32; Intermediate shaft 33; Square part 34; Lifting rope 35; Lifting lug 36; Driven boom 4; Third slider 41; Fourth slider 42; Tower component 5. Detailed Implementation

[0016] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model, and are not intended to limit the protection scope of this utility model.

[0017] Example: Please refer to Figure 1-4 This utility model provides the following technical solution: a large tower component turning and hoisting device, including a rectangular frame 1 with a lifting ring 11 at the top; a winch 12 is provided at the top of the rectangular frame 1, and the end of the rope 13 connected to the winch 12 extends into the rectangular frame 1 and is connected to the top of the lifting frame 2; the lifting frame 2 is slidably connected inside the rectangular frame 1, a first slider 31 is slidably connected to the lifting frame 2, and a second slider 32 is slidably connected to the bottom of the rectangular frame 1; the two ends of the active arm 3 are respectively hinged to the first slider 31 and the second slider 32; an intermediate shaft 33 is slidably connected in a vertical guide groove 14 fixed in the middle of the rectangular frame 1; the active arm 3 has a shaft hole in the middle for fitting onto the intermediate shaft 33; the first slider 31 and the second slider 32 are respectively connected to lifting ropes 35, and the ends of the two lifting ropes 35 are respectively connected to the two ends of the tower component 5.

[0018] In operation, the tower component 5 is initially in a horizontal position, and the lifting frame 2 descends to the bottom of the rectangular frame 1. When the tilting mechanism is activated, the winch 12 pulls the lifting frame 2 upward via rope 13. Simultaneously, under the constraint of the active arm 3, the first slider 31 gradually moves towards the center during its ascent, and the second slider 32 also moves towards the center. The process of the active wall gradually becoming vertical is also the process of the tower component 5 gradually standing upright. The active arm 3 and the tower component 5, along with the two sets of lifting ropes 35, form a parallelogram, ensuring that this parallelogram relationship remains unchanged during the erection process. The two sets of lifting ropes 35 remain parallel, and the force is evenly distributed. When the active arm 3 is vertical, the tower component 5 is erected. At the same time, the intermediate shaft 33 and the guide groove 14 cooperate to restrict the position of the active arm 3, controlling it to rotate only around the intermediate shaft 33. The intermediate shaft 33 can only move vertically up and down, ensuring that the active arm 3 remains in the center of the rectangular frame 1, preventing disorderly translation of the first slider 31 and the second slider 32, and ensuring smooth lifting. The tower component 5 is provided with a shaft-type lifting lug 36 connection structure for connecting the lifting rope 35, so that the end of the lifting rope 35 can rotate with the tower component 5 during the turning process. At least, this shaft-type lifting lug 36 connection structure can utilize the prior art, namely the patent "Combined Lifting Lug 36 Device for Tower Container Lifting" with publication number CN208776182U.

[0019] In one preferred embodiment, the rectangular frame 1 has a hollow cuboid outline and includes a base frame 15 formed by two bottom crossbeams 151 and two bottom longitudinal beams 152 connected together; four vertical columns 17 are fixedly connected to the four corners of the base frame 15; a top frame 16 is formed by two top crossbeams 162 and two top longitudinal beams 161 connected together, and the four corners of the top frame 16 are fixedly connected to the tops of the four columns 17; the lifting frame 2 includes a square frame formed by a pair of side beams 22 and a pair of end beams 23 connected together; sliding sleeves 21 are fixedly provided at the four corners of the square frame, and the four sliding sleeves 21 are respectively fitted onto the four columns 17 for sliding connection between the lifting frame 2 and the rectangular frame 1; there are two first sliders 31, which are slidably connected to the two side beams 22 respectively; there are two second sliders 32, which are slidably connected to the two bottom crossbeams 151 respectively; a pair of first sliders 31 and a pair of second sliders 32 are respectively hinged to the two ends of the two active arms 3.

[0020] As can be seen, the suspension ropes 35 are divided into two groups. One group has two ropes, which are connected to the front two sides of the tower component 5 respectively. The other group has two ropes, which are connected to the rear two sides of the tower component 5 respectively. The force is more balanced and the force on a single suspension rope 35 is smaller, which further reduces the risk of breakage.

[0021] Although the four sliding sleeves 21 can ensure the horizontal lifting of the lifting frame 2, in order to make the lifting of the lifting frame 2 more stable and prevent tilting, two driven arms 4 are added as supporting components. Specifically, the bottom frame 15 also includes two inner crossbeams 153, the two ends of which are fixedly connected to the two bottom longitudinal beams 152 respectively, and are arranged parallel to the two bottom crossbeams 151; the lifting frame 2 also includes two inner side beams 24 located directly above the two inner crossbeams 153, the two ends of which are fixedly connected to the two end beams 23 respectively; a third slider 41 is slidably connected to the inner side beams 24, and a fourth slider 42 is slidably connected to the inner crossbeams 153; it also includes two driven arms 4 of the same length as the active arm 3, the driven arms 4 are arranged crosswise with the active arm 3, and a through hole is provided in the middle for the intermediate shaft 33 to pass through a pair of active arms 3 and a pair of driven arms 4; the two ends of the driven arms 4 are respectively hinged to the third slider 41 and the fourth slider 42. Among them, the lifting ring 11 is fixed to the upper side of the four corners of the fixed frame.

[0022] As can be seen, the two active booms 3 and the two driven booms 4 are hinged to the intermediate shaft 33 to form a scissor lifting mechanism, ensuring that the lifting frame 2 remains horizontal during the lifting process. This reduces the possibility of the lifting frame 2 tilting, makes the sliding of the four sliding sleeves 21 smoother, and the overall operation more stable.

[0023] Meanwhile, due to the spacing between the inner crossbeam 153 and the bottom crossbeam 151, and also due to the spacing between the inner side beam 24 and the side beam 22, the driving boom 3 and the driven boom 4 are not on the same vertical plane but are spaced apart. When the driving boom 3 is completely vertical, the first slider 31 and the third slider 41 will not interfere, and the second slider 32 and the fourth slider 42 will not interfere. At this time, it is ensured that when the tower component 5 is completely vertical, the two sets of lifting ropes 35 will not be tilted and the force will be balanced.

[0024] For example, a mounting plate 18 is fixed to the top of the rectangular frame 1, and the winch 12 is mounted on the mounting plate 18. The mounting plate 18 has a channel opening 181 for the rope 13 to pass through. A lifting lug 36 is fixed to the top of the lifting frame 2 for connecting the rope 13. Alternatively, a pulley system can be installed on the rectangular frame 1 to change the direction of the rope 13, allowing the winch 12 to be positioned at any suitable location. However, in this embodiment, the winch 12 is positioned directly above, the rope 13 is shortest, and the force is evenly distributed.

[0025] For example, the mounting base of the guide groove 14 can be set on the mounting plate 18, and the top end of the guide groove 14 is fixed to the lower end of the mounting plate 18.

[0026] To ensure smoother lifting and lowering of the intermediate shaft 33, a square section 34 is provided in the middle of the intermediate shaft 33 for slidably inserting into the guide groove 14. This avoids the risk of the intermediate shaft 33 becoming misaligned.

[0027] The advantage of this embodiment is that by connecting the active arm 3 with the two sliders, the object to be suspended, the two sets of lifting ropes 35 and the active arm 3 form a parallelogram structure; so that during the process of the object being suspended from lying horizontally to standing upright, the two sets of lifting ropes 35 are synchronously and smoothly raised and lowered, which is simple to operate and has a balanced force. Even when the object being suspended is completely vertical, the two sets of lifting ropes 35 will not be tilted and will always remain vertical, thus ensuring safety.

[0028] The parts of this utility model not described in detail are prior art; for those skilled in the art, the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A large tower component turning and hoisting device, comprising a rectangular frame (1) with a lifting ring (11) at the top; characterized in that: A winch (12) is provided at the top of the rectangular frame (1). The end of the rope (13) connected to the winch (12) extends into the interior of the rectangular frame (1) and is connected to the top of the lifting frame (2). The lifting frame (2) is slidably connected inside the rectangular frame (1). The first slider (31) is slidably connected to the lifting frame (2), and the second slider (32) is slidably connected to the bottom of the rectangular frame (1). The two ends of the active arm (3) are respectively hinged to the first slider (31) and the second slider (32). The intermediate shaft (33) is slidably connected in the vertical guide groove (14) fixed in the middle of the rectangular frame (1). The active arm (3) has a shaft hole in the middle for fitting onto the intermediate shaft (33). The first slider (31) and the second slider (32) are respectively connected to lifting ropes (35), and the ends of the two lifting ropes (35) are respectively connected to the two ends of the tower component (5).

2. The large tower component turning and hoisting device according to claim 1, characterized in that: The rectangular frame (1) is a hollow cuboid, comprising a bottom frame (15) formed by two bottom horizontal beams (151) and two bottom vertical beams (152) connected together; four vertical columns (17) are fixedly connected to the four corners of the bottom frame (15); and a top frame (16) formed by two top horizontal beams (162) and two top vertical beams (161) connected together, wherein the four corners of the top frame (16) are fixedly connected to the tops of the four columns (17). The lifting frame (2) includes a square frame formed by connecting a pair of side beams (22) and a pair of end beams (23); the four corners of the square frame are fixed with sliding sleeves (21), and the four sliding sleeves (21) are respectively fitted on the four columns (17) for sliding connection between the lifting frame (2) and the rectangular frame (1); There are two first sliders (31), which are slidably connected to the two side beams (22); there are two second sliders (32), which are slidably connected to the two bottom crossbeams (151); a pair of first sliders (31) and a pair of second sliders (32) are used to hinge the two active arms (3).

3. The large tower component turning and hoisting device according to claim 2, characterized in that: The bottom frame (15) also includes two inner crossbeams (153), the two ends of which are fixedly connected to the two bottom longitudinal beams (152) respectively, and are arranged parallel to the bottom crossbeams (151); The lifting frame (2) also includes two inner side beams (24) located directly above the two inner cross beams (153), and the two ends of the inner side beams (24) are fixedly connected to the two end beams (23) respectively; The inner beam (24) is slidably connected to the third slider (41), and the inner cross beam (153) is slidably connected to the fourth slider (42); It also includes two driven arms (4) of the same length as the active arm (3), the driven arms (4) are arranged crosswise with the active arm (3), and a through hole is provided in the middle for the intermediate shaft (33) to pass through a pair of active arms (3) and a pair of driven arms (4); the two ends of the driven arms (4) are respectively hinged to the third slider (41) and the fourth slider (42).

4. The large tower component turning and hoisting device according to claim 1, characterized in that: The rectangular frame (1) is fixed with a mounting plate (18) at the top, and the winch (12) is mounted on the mounting plate (18). The mounting plate (18) has a channel opening (181) for the rope (13) to pass through. The lifting frame (2) is fixed with a lifting lug (36) at the top for connecting the rope (13).

5. The large tower component turning and hoisting device according to claim 4, characterized in that: The top end of the guide groove (14) is fixed to the lower end of the mounting plate (18).

6. The large tower component turning and hoisting device according to claim 1, characterized in that: The intermediate shaft (33) has a square part (34) in the middle, which is used to be slidably inserted into the guide groove (14).

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