A hoisting and turning device for a conical shell

Abstract

The application discloses a kind of for conical shell hoisting and turnover device, belong to mechanical processing technical field, for solving the problem that conical shell outer surface is variable diameter curved surface and cannot be reliably clamped and turned over by conventional sling.The device structure includes hanger, and the clamping assembly for holding conical shell is installed on both sides of hanger through connecting mechanism;Connecting mechanism is switched between unlocking state and locking state by drawing and rotating operation, and then the opening and closing state of clamping assembly is controlled;Clamping assembly is designed as double-diameter structure, and in closed state, the clamping space matched with the outer surface of conical shell is formed by center enclosure.It is convenient to suit from the side of conical shell by openable and closable double-diameter clamping assembly, and the clamping space matched with the outer surface of conical shell is formed by enclosure, which overcomes the difficulty that conical curved surface cannot be stably fitted into sling due to its particularity.

Description

Technical Field

[0001] This invention belongs to the field of mechanical processing technology and relates to hoisting aids, specifically a hoisting and flipping device for a conical shell. Background Technology

[0002] In the field of mechanical manufacturing and assembly, for large rotating workpieces, such as cabins and hulls of aircraft or spacecraft, lifting equipment is often required for workstation transfer or attitude adjustment during production, assembly, and testing. For workpieces with regular shapes, slings are typically used for direct binding and lifting, or clamping is achieved by locking with clamps, and then lifting equipment is connected using lifting rings or lugs to complete the lifting. These common methods all rely on the workpiece having regular shape features that can be clamped, such as cylindrical surfaces or flange surfaces.

[0003] However, the tail section hull of underwater vehicles and aerial vehicles exhibits a near-conical, variable-diameter curved surface with a significant difference in diameter between the small and large ends. Furthermore, during assembly, this structure requires multiple orientation changes between horizontal and vertical placement according to process requirements. Since the conical outer surface cannot provide a reliable clamping and positioning reference, traditional flexible sling binding methods are prone to axial slippage due to uneven force distribution. Conventional split-type clamps typically have fixed-diameter cylindrical holes for clamping, which cannot effectively fit against the conical surface and are difficult to securely lock.

[0004] Therefore, there is an urgent need for a device that can reliably clamp a conical shell and facilitate hoisting and flipping on it. Summary of the Invention

[0005] The purpose of this invention is to provide a lifting and flipping device for conical shells, which aims to solve the technical problem in the prior art that the outer surface of the conical shell is a variable-diameter curved surface, making it impossible to reliably clamp, lift, and flip it with conventional lifting tools.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A hoisting and flipping device for a conical shell includes a hanger, on both sides of which clamping components for gripping the conical shell are installed via a connecting mechanism; the connecting mechanism switches between an unlocked state and a locked state through pulling and rotating operations, thereby controlling the opening and closing state of the clamping components.

[0008] The clamping assembly includes a side pressure ring group A and a side pressure ring group B, which are hinged together by two sets of hinge structures. In the closed state, the connecting mechanism locks the hanger to the side pressure ring group A and the side pressure ring group B to form a clamping space that adapts to the outer surface of the conical shell. At this time, the connecting mechanism is in the locked state and extends into the clamping assembly to fix the hanger and the clamping assembly together. When the connecting mechanism is unlocked, it is disengaged from the clamping assembly, and the connection between the hanger and the side pressure ring group A and the side pressure ring group B is loosened, allowing the clamping assembly to enter the open / closed state.

[0009] Furthermore, the side pressure ring assembly A includes a first pressure ring A and a second pressure ring A, with one end of the first pressure ring A and the second pressure ring A fixedly connected by a connecting plate A; the side pressure ring assembly B includes a first pressure ring B and a second pressure ring B, with one end of the first pressure ring B and the second pressure ring B fixedly connected by a connecting plate B.

[0010] The first pressure ring A has a first double-ear seat and a first side connecting ear A at its other end; correspondingly, the first pressure ring B has a first single-ear seat and a first side connecting ear B at its end; the first single-ear seat is inserted into the first double-ear seat and each has a through hole, through which a pivot pin is inserted for hinged connection; threaded holes are formed on the first side connecting ear A and the first side connecting ear B, through which a screw is inserted for fixed connection; similarly, the second pressure ring A has a second double-ear seat and a second side connecting ear A, and correspondingly, the second pressure ring B has a second single-ear seat and a second side connecting ear B; the second single-ear seat is inserted into the second double-ear seat and each has a through hole, through which a pivot pin is inserted for hinged connection; threaded holes are formed on the second side connecting ear A and the second side connecting ear B, through which a screw is inserted for fixed connection.

[0011] Furthermore, the connecting mechanism includes a set of positioning pins symmetrically mounted on the side pressure ring group A and the side pressure ring group B; it also includes one or more positioning pins X for preventing the conical housing from flipping over, the positioning pins X being mounted on the side pressure ring group A / side pressure ring group B.

[0012] Furthermore, the positioning pin includes:

[0013] The pin housing has a straight hole axially inside, and the inner wall of the straight hole is provided with a guide groove extending axially and an annular groove extending circumferentially.

[0014] A pin is slidably disposed in a straight hole, and a convex ring is provided on its outer circular surface. The convex ring is provided with a square protrusion that cooperates with a guide groove. The square protrusion cooperates with the annular groove for limiting the position.

[0015] A spring, set inside a straight hole, is fitted onto a pin below a convex ring and is used to push the pin out.

[0016] The handle is fixedly connected to one end of the pin and is used to drive the pin to rotate and move axially.

[0017] The positioning pin has two states: In the unlocked state, the pin is pulled outward by the lever until the convex ring reaches the annular groove. Rotating the lever causes the square protrusion on the convex ring to rotate and engage in the annular groove, and the pin disengages from the connecting plate and retracts, thus completing the unlocking process. In the locked state, rotating the lever in the opposite direction causes the square protrusion to disengage from the annular groove and enter the guide groove. The pin extends into the connecting plate under the action of the spring, thus completing the locking process.

[0018] Furthermore, a set of observation holes are symmetrically provided at both ends of the annular groove for observing the position and status of the internal convex ring.

[0019] Furthermore, the clamping assembly is also provided with a limiting component, which includes a telescopic positioning rod, which is threadedly connected to the connecting plate A or the connecting plate B; a baffle is slidably connected to the front end of the telescopic positioning rod; the baffle is configured such that when the conical shell is inserted into the clamping space, the position of the baffle can be slidably adjusted so that it locks the large end face of the conical shell, preventing axial movement between the clamping assembly and the conical shell.

[0020] Furthermore, a lifting ring is provided at the center of the hanger to facilitate hoisting.

[0021] Furthermore, the inner surfaces of the first pressure ring A, the second pressure ring A, the first pressure ring B, and the second pressure ring B are provided with an elastic protective layer.

[0022] Furthermore, the main body of the hanger and clamping assembly is made of aluminum alloy and the surface is anodized.

[0023] The working principle of this invention is as follows:

[0024] Lifting of the conical shell:

[0025] First, connect side pressure ring group A and side pressure ring group B through the two sets of hinge structures at the top to form a complete clamping assembly (in the open / closed state). Insert the small end of the conical shell through the semi-circular ring at the large diameter end of the clamping assembly and exit through the semi-circular ring at the small diameter end, so that the outer surface of the conical shell is in contact with the elastic protective layer on the inner surface of the clamping assembly. Close the clamping assembly and tighten the screws on the first locking member formed by the first side connecting ear A and the first side connecting ear B, and the screws on the second locking member formed by the second side connecting ear A and the second side connecting ear B, so that the clamping assembly tightly grips the conical shell. Adjust the position of the baffle so that it is in contact with the large end face of the conical shell.

[0026] Next, install the hanger: pass the crane hook through the lifting ring, install the positioning pins on both sides of the hanger, and unlock the positioning pins by pulling and rotating. Slowly lower the hanger to the lifting position, rotate the lever of the positioning pin to disengage the square protrusion from the annular groove and into the guide groove; the pin shaft pops out under the action of the spring and extends into the positioning hole of connecting plate A or connecting plate B, locking the hanger to the clamping assembly. Finally, slowly lift the conical shell with the crane.

[0027] The flipping of the conical shell:

[0028] When it is necessary to flip the conical housing from a horizontal to a vertical position (or vice versa), pull out the handle of the positioning pin X on the hanger and rotate it to retract the pin and lock it in the unlocked state. At this time, the conical housing is still connected by the symmetrically arranged positioning pins (locked state). Hold the conical housing and slowly flip it to the target posture. Slowly lower the device to the installation position, and finally disassemble the device to complete the hoisting. The specific disassembly process is as follows: pull out the handle of the set of positioning pins symmetrically arranged on the left and right sides of the hanger and rotate it to make the square protrusion engage in the annular groove, unlocking all positioning pins. Finally, loosen the first and second locking parts, remove the clamping assembly, and lift the hanger.

[0029] Compared with the prior art, the present invention has the following beneficial technical effects:

[0030] The conical shell lifting and flipping device provided by this invention, through the design of an openable dual-diameter clamping assembly, allows for convenient mounting from the side of the conical shell, forming a clamping space adapted to the outer surface of the conical shell. This overcomes the problem of unstable mounting of the lifting device due to the special characteristics of the conical curved surface. The lifting frame and clamping assembly are quickly connected and separated via a lockable connection mechanism. Operators only need to pull and rotate the lever to control the positioning pin to switch between locked and unlocked states, without the need for any tools. This significantly simplifies the lifting and flipping operation process and improves work efficiency. The device has a simple structure, low manufacturing cost, and convenient operation, and can be widely used in the lifting and flipping of shells of other diameters or with similar shapes. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram showing the hoisting structure of the device of the present invention and the conical shell.

[0033] Figure 2This is a three-dimensional structural diagram of the present invention.

[0034] Figure 3 This is a three-dimensional structural diagram of the clamping assembly of the present invention.

[0035] Figure 4 This is a front view of the structure of the hanger of the present invention.

[0036] Figure 5 This is a side view showing the structure of the hanger of the present invention.

[0037] Figure 6 This is a schematic diagram showing the assembly structure of the hanger and clamping assembly of the present invention (side pressure rings A and B are hidden).

[0038] Figure 7 This is a three-dimensional structural diagram of the side pressure ring assembly A of the present invention.

[0039] Figure 8 This is a three-dimensional structural diagram of the side pressure ring assembly B of the present invention.

[0040] Figure 9 This is a three-dimensional structural diagram of the positioning pin of the present invention.

[0041] Figure 10 This is a longitudinal cross-sectional schematic diagram showing the locking state of the positioning pin of the present invention.

[0042] Figure 11 This is a cross-sectional schematic diagram showing the unlocked state of the positioning pin of the present invention.

[0043] Among them, 1-Hanger, 2-Side pressure ring group A, 21-First pressure ring A, 211-First double ear seat, 212-First side connecting ear A, 22-Second pressure ring A, 221-Second double ear seat, 222-Second side connecting ear A, 23-Connecting plate A, 3-Side pressure ring group B, 31-First pressure ring B, 311-First single ear seat, 312-First side connecting ear B, 32-Second pressure ring B, 321-Second single ear seat, 322-Second side connecting ear B, 33-Connecting plate B, 4-Conical shell, 5-Positioning pin, 51-Pin shell, 511-Straight hole, 512-Guide groove, 513-Annular groove, 52-Pin shaft, 521-Protruding ring, 522-Square protrusion, 53-Spring, 54-Holding rod, 55-Positioning pin X, 6-Telescopic positioning rod, 7-Baffle, 8-Lifting ring. Detailed Implementation

[0044] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0045] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0046] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0047] refer to Figure 1-11 As shown, the present invention provides a hoisting and flipping device for a conical shell, including a hanger 1, a lifting ring 8 at the center of the hanger 1; clamping components for holding the conical shell 4 are installed on both sides of the hanger 1 through a connecting mechanism; the connecting mechanism switches between an unlocked state and a locked state through pulling and rotating operations, thereby controlling the opening and closing state of the clamping components.

[0048] The clamping assembly includes a side pressure ring group A2 and a side pressure ring group B3, which are hinged together by two sets of hinge structures. In the closed state, the connecting mechanism locks the hanger 1 with the side pressure ring group A2 and the side pressure ring group B3 to form a clamping space that fits the outer surface of the conical shell 4. At this time, the connecting mechanism is in the locked state and extends into the clamping assembly to fix the hanger 1 and the clamping assembly together. When the connecting mechanism is unlocked, it is disengaged from the clamping assembly, so that the hanger 1 is separated from the clamping assembly (side pressure ring group A2 and side pressure ring group B3), which facilitates the assembly of the clamping assembly and the conical shell 4.

[0049] The main body of the device (including side pressure ring assembly A2 and side pressure ring assembly B3 and hanger 1) is made of aluminum alloy. Aluminum alloy has low density and high strength, which can meet the lifting strength requirements while reducing the weight of the device itself and facilitating operation. The surface of the main body is anodized to form a dense oxide film protective layer, which has good corrosion resistance.

[0050] I. Clamping Components

[0051] like Figure 3 and 7 As shown in Figure -8, the side pressure ring assembly A2 includes a first pressure ring A21 and a second pressure ring A22, with one end of the first pressure ring A21 and the second pressure ring A22 fixedly connected by a connecting plate A23. Figure 8 As shown, the side pressure ring assembly B3 includes a first pressure ring B31 and a second pressure ring B32, with one end of the first pressure ring B31 and the second pressure ring B32 fixedly connected by a connecting plate B33.

[0052] Specifically, such as Figure 2 and 3As shown, the connecting plate secures the first and second pressure rings together using four M8×25 screws and four washers. Elastic protective layers are adhered to the inner surfaces of the first pressure ring A21, the second pressure ring A22, the first pressure ring B31, and the second pressure ring B32. These elastic protective layers are rubber pads with a thickness between 2mm and 3mm. Their function is twofold: firstly, to increase the friction between the clamping assembly and the outer surface of the conical housing 4, making the clamping more stable and reliable; and secondly, to protect the outer surface of the conical housing 4, preventing the metal pressure rings from scratching or indenting it. In practical applications, other elastic materials can also be used to make this elastic protective layer; this embodiment does not limit this choice.

[0053] like Figure 1-3 As shown, the other end of the first pressure ring A21 is provided with a first double-ear seat 211 and a first side connecting ear A212; correspondingly, the end of the first pressure ring B31 is provided with a first single-ear seat 311 and a first side connecting ear B312. The first single-ear seat 311 is inserted into the first double-ear seat 211, and each has a through hole of φ11mm. A hinged connection is achieved by inserting a pivot pin 10×45×3.2 into the through hole, forming a first hinged structure, allowing the first pressure ring A21 and the first pressure ring B31 to rotate freely around the pivot pin. A cotter pin 2.5×12 is installed in the φ3.2mm hole at the end of the pivot pin 10×45×3.2 to prevent the pivot pin from falling off.

[0054] Threaded holes are provided on the first side connecting ear A212 and the first side connecting ear B312. When the first pressure ring A21 and the first pressure ring B31 are closed, they are fastened by the screw M10×100, the flat washer and the spring washer passing through the corresponding threaded holes on the two side connecting ears, forming a detachable first locking member, so that the clamping assembly is firmly locked on the conical housing 4.

[0055] Similarly, the second pressure ring A22 is provided with a second double-ear seat 221 and a second side connecting ear A222, and correspondingly, the second pressure ring B32 is provided with a second single-ear seat 321 and a second side connecting ear B322. The second single-ear seat 321 is inserted into the second double-ear seat 221, and each has a through hole of φ11mm. A hinged connection is achieved by inserting a pivot pin 10×45×3.2 into the through hole, forming a second hinged structure, allowing the second pressure ring A22 and the second pressure ring B32 to rotate freely around the pivot pin. A cotter pin 2.5×12 is installed in the φ3.2mm hole at the end of the pivot pin 10×45×3.2 to prevent the pivot pin from falling off.

[0056] Threaded holes are provided on the second side connecting ear A222 and the second side connecting ear B322, and screws are inserted into the threaded holes for fixed connection. Each of the second side connecting ear A222 and the second side connecting ear B322 has a threaded hole; when the second pressure ring A22 and the second pressure ring B32 are closed, the screw M10×100, the flat washer and the spring washer pass through the corresponding threaded holes on the two side connecting ears for fastening, forming a detachable second locking member, so that the clamping assembly is firmly locked on the conical housing 4.

[0057] II. Connecting Mechanism

[0058] like Figure 2 and 9 As shown in Figure -11, the connecting mechanism includes a set of positioning pins 5 symmetrically mounted on the side pressure ring group A2 and the side pressure ring group B3. The symmetrically arranged positioning pins 5 can act as pivots, facilitating adjustment of the lifting angle after clamping the conical shell 4. It also includes a positioning pin X55, which is locked after the lifting angle is determined to fix the lifting posture of the conical shell 4.

[0059] like Figure 10 As shown, the positioning pin 5 includes a pin housing 51. A straight hole 511 is axially formed inside the pin housing 51. An axially extending guide groove 512 and a circumferentially extending annular groove 513 are provided on the inner wall of the straight hole 511. The annular groove 513 communicates with the guide groove 512. A pin 52 is slidably fitted inside the straight hole 511. A convex ring 521 with an outer diameter of φ12.5mm is provided on the outer surface of the pin 52. Two symmetrically distributed square protrusions 522 are provided on the outer periphery of the convex ring 521. The square protrusions 522 cooperate with the guide groove 512 and the annular groove 513. Figure 11 As shown. An elliptical observation hole is provided at each of the upper and lower ends of the annular groove 513 to facilitate observation of the position of the internal convex ring 521. A spring 53 is fitted onto the pin 52 located below the convex ring 521. The spring 53 is fitted onto the pin 52 and placed inside the straight hole 511 of the pin housing 51. One end of the spring 53 abuts against the inner end face of the pin housing 51, and the other end abuts against the convex ring 521 of the pin 52, used to push the pin 52 out. A handle 54 is fixedly installed on the outer end of the pin 52. The specific connection method is as follows: the handle 54 is fitted onto the outer end of the pin 52. Using the φ2mm hole on the handle 54 as a guide hole, a φ2mm hole is drilled on the pin 52. Then, a 2×10 pin is pressed into the holes of the handle 54 and the pin 52 to form an interference fit, thus fixing the handle 54 and the pin 52 together. The handle 54 is used to drive the pin 52 to rotate and move axially.

[0060] like Figure 6As shown, φ12mm positioning holes are provided on connecting plate A23 and connecting plate B33. The positioning pin 5 is configured to switch between a locked state and an unlocked state by pulling and rotating. In the locked state, the pin 52 extends outward under the elastic force of the spring 53, and its front end extends into the φ12mm positioning hole on connecting plate A23 or connecting plate B33, so that the hanger 1 is fixedly connected to the clamping assembly. In the unlocked state, the pin 52 is pulled outward by the lever 54, so that the square protrusion 522 slides along the guide groove 512 to the position of the annular groove 513. Then, the lever 54 is rotated so that the square protrusion 522 is engaged in the annular groove 513. The pin 52 is locked in the retracted unlocked state, and the front end of the pin 52 disengages from the positioning hole, separating the hanger 1 from the clamping assembly.

[0061] III. Limiting Components

[0062] To prevent axial movement between the device and the conical shell 4 during hoisting and tilting, a limit component is also provided on the clamping assembly. For example... Figure 1 As shown, the limiting assembly includes a telescopic positioning rod 6 and a baffle 7. One end of the telescopic positioning rod 6 has an M6 external thread, which is screwed into the M6 ​​threaded hole on the end face of the connecting plate B33. The baffle 7 is a strip-shaped plate structure with a mounting through hole, through which it is fitted onto the telescopic positioning rod 6. The end of the telescopic positioning rod 6 has a mounting hole, through which an M5×16 screw is inserted to fasten the baffle 7 to the end of the telescopic positioning rod 6. After the conical housing 4 is inserted into the clamping space, the telescopic positioning rod 6 is pulled to adjust the position of the baffle 7, adjusting the baffle 7 to fit against the large end face of the conical housing 4, thereby effectively preventing axial relative movement between the device and the conical housing 4.

[0063] refer to Figure 1-11 As shown, the working principle of the hoisting and tilting device for a conical shell of the present invention is as follows:

[0064] Lifting of the conical shell:

[0065] First, connect the side pressure ring group A2 and side pressure ring group B3 into a complete clamping assembly via two sets of hinged structures at the top, and keep it in the open / closed state. Insert the small end of the conical shell 4 through the semicircular ring at the large diameter end of the clamping assembly and exit through the semicircular ring at the small diameter end, so that the outer surface of the conical shell 4 is in contact with the elastic protective layer on the inner surface of the side pressure ring group A2 and side pressure ring group B3. Close the clamping assembly and tighten the screws on the first locking member formed by the first side connecting ear A212 and the first side connecting ear B312, and the screws on the second locking member formed by the second side connecting ear A222 and the second side connecting ear B322, so that the clamping assembly grips the conical shell 4. Adjust the position of the baffle 7 so that it is in contact with the large end face of the conical shell 4.

[0066] Next, install the lifting frame 1: After passing the lifting sling through the lifting ring 8, hang it on the crane hook. Install three sets of positioning pins 5 on the left and right sides of the lifting frame 1. Pull the levers 54 of the three sets of positioning pins 5 respectively, so that the pin shaft 52 is pulled outward and rotated 45°, so that the square protrusion 522 is engaged in the annular groove 513, locking the pin shaft 52 in the unlocked state (e.g., Figure 11 (As shown). Slowly lower the hanger 1 to the hoisting position, rotate the lever 54 of the positioning pin 5 (turning it to the vertical direction), and the square protrusion 522 disengages from the annular groove 513 and enters the guide groove 512; the pin 52 pops out under the action of the spring 53 and extends into the positioning hole of the connecting plate A23 or the connecting plate B33, locking the hanger 1 with the clamping assembly. Check whether the connection of the side pressure ring group A2 and the side pressure ring group B3 is loose. If it is loose, lower the conical shell 4 and tighten the first locking member and the second locking member again. Slowly lift the conical shell 4 with a crane.

[0067] The flipping of the conical shell:

[0068] When it is necessary to flip the conical housing 4 from a horizontal state to a vertical state (or vice versa), pull the lever 54 of the positioning pin X55 on the right side of the hanger 1 near the rear end outward to the annular groove 513, rotate 45°, so that the pin 52 retracts and locks in the unlocked state (as shown). Figure 11 (As shown). At this time, the conical housing 4 is still connected by the other two locking positioning pins 5. Hold the conical housing 4 by hand and slowly rotate it 90° to adjust it to the target posture (small end down, large end up). Slowly lower the device to the installation position, and finally disassemble the device to complete the hoisting. The specific disassembly process is as follows: Pull out the handles 54 of a set of positioning pins 5 symmetrically arranged on the left and right sides of the hanger 1 until the square protrusion 522 reaches the annular groove 513. Rotate 45° so that the square protrusion 522 is inserted into the annular groove 513. All positioning pins 5 are retracted and unlocked (as shown). Figure 11 (As shown). Finally, loosen the first and second locking parts, remove the side pressure ring assembly A2 and the side pressure ring assembly B3, and lift the hanger 1.

[0069] The conical shell lifting and flipping device provided by this invention, through the design of an openable dual-diameter clamping assembly, allows for convenient mounting from the side of the conical shell, forming a clamping space adapted to the outer surface of the conical shell. This overcomes the problem of unstable mounting of the lifting device due to the special characteristics of the conical curved surface. The lifting frame and clamping assembly are quickly connected and separated via a lockable connection mechanism. Operators only need to pull and rotate the lever to control the positioning pin to switch between locked and unlocked states, without the need for any tools. This significantly simplifies the lifting and flipping operation process and improves work efficiency. The device has a simple structure, low manufacturing cost, and convenient operation, and can be widely used in the lifting and flipping of shells of other diameters or with similar shapes.

[0070] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered within the protection scope of the claims.

Claims

1. A hoisting and tilting device for a conical shell, comprising a lifting frame (1), characterized in that: The hanger (1) has clamping components for holding the conical shell (4) installed on both sides by a connecting mechanism; the connecting mechanism switches between the unlocked state and the locked state by pulling and rotating, thereby controlling the opening and closing state of the clamping components. The clamping assembly includes a side pressure ring group A (2) and a side pressure ring group B (3), which are hinged together by two sets of hinge structures. In the closed state, the connecting mechanism locks the hanger (1) with the side pressure ring group A (2) and the side pressure ring group B (3) to form a clamping space that is adapted to the outer surface of the conical shell (4). At this time, the connecting mechanism is in the locked state and extends into the clamping assembly to fix the hanger (1) and the clamping assembly into one unit. When the connecting mechanism is unlocked, the connecting mechanism is disengaged from the clamping assembly, and the connection between the hanger (1) and the side pressure ring group A (2) and the side pressure ring group B (3) is loosened, so that the clamping assembly enters the open and closed state.

2. The hoisting and tilting device for a conical shell according to claim 1, characterized in that: The side pressure ring group A (2) includes a first pressure ring A (21) and a second pressure ring A (22), and one end of the first pressure ring A (21) and the second pressure ring A (22) is fixedly connected by a connecting plate A (23); the side pressure ring group B (3) includes a first pressure ring B (31) and a second pressure ring B (32), and one end of the first pressure ring B (31) and the second pressure ring B (32) is fixedly connected by a connecting plate B (33); The other end of the first pressure ring A (21) is provided with a first double ear seat (211) and a first side connecting ear A (212); correspondingly, the end of the first pressure ring B (31) is provided with a first single ear seat (311) and a first side connecting ear B (312); the first single ear seat (311) is inserted into the first double ear seat (211) and each has a through hole, and a pivot pin is inserted through the through hole for hinge connection; threaded holes are provided on the first side connecting ear A (212) and the first side connecting ear B (312), and a screw is inserted through the threaded hole for fixed connection. Similarly, the second pressure ring A (22) is provided with a second double ear seat (221) and a second side connecting ear A (222), and correspondingly, the second pressure ring B (32) is provided with a second single ear seat (321) and a second side connecting ear B (322); the second single ear seat (321) is inserted into the second double ear seat (221) and each has a through hole, and a pivot pin is passed through the through hole for hinge connection; the second side connecting ear A (222) and the second side connecting ear B (322) have threaded holes, and a screw is passed through the threaded holes for fixed connection.

3. The hoisting and tilting device for a conical shell according to claim 1, characterized in that: The connecting mechanism includes a set of positioning pins (5) symmetrically mounted on the side pressure ring group A (2) and the side pressure ring group B (3); it also includes one or more positioning pins X (55) for preventing the conical housing (4) from flipping over, the positioning pins X (55) being mounted on the side pressure ring group A (2) / side pressure ring group B (3).

4. The hoisting and tilting device for a conical shell according to claim 3, characterized in that: The positioning pin (5) includes: The pin housing (51) has a straight hole (511) axially inside. The inner wall of the straight hole (511) is provided with a guide groove (512) extending axially and an annular groove (513) extending circumferentially. The pin (52) is slidably disposed in the straight hole (511), and a convex ring (521) is provided on its outer circular surface. The convex ring (521) is provided with a square protrusion (522) that cooperates with the guide groove (512). The square protrusion (522) cooperates with the annular groove (513) for limiting. A spring (53) is set inside a straight hole (511) and sleeved on a pin (52) below a convex ring (521) to push the pin (52) out. The handle (54) is fixedly connected to one end of the pin (52) and is used to drive the pin (52) to rotate and move axially; The positioning pin (5) has two states. In the unlocked state, the pin (52) is pulled outward by the lever (54) until the convex ring (521) reaches the position of the annular groove (513). The lever (54) is rotated to make the square protrusion (522) on the convex ring (521) rotate and get into the annular groove (513). The pin (52) is disengaged from the connecting plate and retracted, thus completing the unlocking. In the locked state, the lever (54) is rotated in the opposite direction to make the square protrusion (522) disengage from the annular groove (513) and enter the guide groove (512). The pin (52) is extended into the connecting plate under the action of the spring (53), thus completing the locking.

5. The hoisting and tilting device for a conical shell according to claim 1, characterized in that: A set of observation holes are symmetrically opened at both ends of the annular groove (513) for observing the position and status of the internal convex ring (521).

6. The hoisting and tilting device for a conical shell according to claim 1, characterized in that: The clamping assembly is also provided with a limiting component, which includes a telescopic positioning rod (6), which is threadedly connected to the connecting plate A (23) or the connecting plate B (33); a baffle (7) is slidably connected to the front end of the telescopic positioning rod (6); the baffle (7) is configured such that when the conical shell (4) is inserted into the clamping space, the position of the baffle (7) can be slidably adjusted so that it locks the large end face of the conical shell (4) to prevent axial movement between the clamping assembly and the conical shell (4).

7. The hoisting and tilting device for a conical shell according to claim 6, characterized in that: The center of the hanger (1) is provided with a lifting ring (8) for easy hoisting.

8. The hoisting and tilting device for a conical shell according to claim 2, characterized in that: An elastic protective layer is provided on the inner surface of the first pressure ring A (21), the second pressure ring A (22), the first pressure ring B (31), and the second pressure ring B (32).

9. The hoisting and tilting device for a conical shell according to claim 8, characterized in that: The main body of the hanger (1) and clamping assembly is made of aluminum alloy and the surface is anodized.

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