Centering and hoisting device for heavy pressure gas tank

Abstract

The utility model discloses a centering and hoisting device for a heavy pressure gas tank, and belongs to the technical field of pressure vessel manufacturing. The device comprises a split type lifting appliance, the split type lifting appliance is composed of an upper lifting frame and a lower lifting frame, the upper lifting frame slides on a cross beam, a plurality of vertically-distributed inserting cylinders are downwards fixed to the upper lifting frame, the inserting cylinders are evenly distributed and fixedly installed on an outer ring of the upper lifting frame, and four inserting rods corresponding to the inserting cylinders are arranged at the top of the lower lifting frame; a lifting mechanism; and the transmission rotating mechanism comprises a grinding wheel, a plurality of driving rollers, a chain ring and a driving motor. According to the centering and hoisting device for the heavy pressure gas tank, the gas tank is accurately centered through cooperation of a conical insertion structure of the split type hoisting tool and an anti-deflection gap, the stability is greatly improved, stable and reliable rotation is ensured through a grinding wheel, a rolling wheel and a chain transmission system, and the angle is conveniently adjusted to meet the use requirements of procedures; in addition, by means of the gas tank installation mode of the plug pins and the hoisting holes, hoisting under the rotating and non-rotating requirements of the gas tank is considered.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel manufacturing technology, and in particular to a centering and hoisting device for heavy-duty pressure gas tanks. Background Technology

[0002] Large pressure vessel gas storage tanks are key equipment in the petrochemical, energy storage and transportation fields. The safety, accuracy and efficiency of their transportation and assembly processes directly affect the continuity of the production line.

[0003] Currently, heavy-duty pressure gas cylinders are typically hoisted, transported, and installed using traditional hoisting devices such as steel ropes, cranes, or simple scaffolding structures. However, traditional hoisting devices lack effective centering mechanisms, causing the gas cylinders to sway due to external forces or inertia during hoisting. This can lead to cylinder displacement or swaying, affecting installation accuracy and potentially causing damage to the cylinders or other safety hazards, increasing operational risks. Furthermore, heavy-duty gas cylinders require angle adjustments or stable self-rotation during certain processes, such as fiber winding and welding. Existing hoisting tools typically lack rotation capabilities, relying on manual adjustments, which is inefficient and inconvenient to operate.

[0004] To address the aforementioned issues, we propose a heavy-duty pressure gas tank centering and hoisting device that enables high-precision centering, stable hoisting, and controllable rotation, thereby improving the hoisting efficiency and safety of heavy-duty pressure gas tanks. Utility Model Content

[0005] The purpose of this utility model is to provide a heavy-duty pressure gas tank centering and hoisting device to solve the problems of traditional hoisting devices being prone to swaying during hoisting, which increases the risk of operation, and the lack of a stable self-rotation mechanism that relies on manual adjustment of the tank angle.

[0006] To solve the above-mentioned technical problems, this utility model provides a heavy-duty pressure gas tank centering and hoisting device, including a split-type lifting device, which consists of an upper lifting frame and a lower lifting frame. The upper lifting frame slides on a crossbeam, and multiple vertically distributed plug-in cylinders are fixed downward on the upper lifting frame. The plug-in cylinders are evenly distributed and fixedly installed on the outer ring of the upper lifting frame. The top of the lower lifting frame is provided with multiple plug rods corresponding to the plug-in cylinders. The plug rods are inserted into the plug-in cylinders to ensure that the axis of the pressure gas tank is fixed.

[0007] A lifting mechanism is used to control the lifting and lowering of the lower suspension frame;

[0008] The transmission rotation mechanism includes a grinding wheel disposed at the center of the lower hanger, a plurality of drive rollers evenly distributed around the outer circumference of the grinding wheel, a chain ring disposed outside the drive rollers, and a drive motor for driving the chain ring.

[0009] Preferably, the contact end face between the insertion rod and the insertion tube is a conical structure, and an anti-sway gap is provided between the insertion rod and the inner wall of the insertion tube, with a gap width of 2-5mm to reserve buffer space.

[0010] Preferably, the grinding wheel is connected to the lower hanger via a bearing, and the outer wall of the grinding wheel is provided with annular friction patterns.

[0011] Preferably, the number of driving rollers is 3 to 6, which are evenly distributed along the outer circumference of the grinding wheel, and the axis of each driving roller is parallel to the axis of the grinding wheel.

[0012] Preferably, the lifting mechanism includes an electric hoist, the steel rope of which is connected to a pulley, and the bottom of the pulley is mounted above the lower frame via connecting plates on both sides.

[0013] Preferably, the grinding wheel has a flange at its bottom, which is connected to the top of the gas tank via a pin. The pin hole passes through the flange and the gas tank hoisting area, and the pin rod restricts the relative rotation between the grinding wheel and the gas tank after insertion.

[0014] Preferably, the flange edge is also provided with a lifting ring, and a lifting hook can be detachably connected inside the lifting ring for rapid lifting in processes where the tank does not require rotation.

[0015] Compared with the prior art, the heavy-duty pressure gas tank centering and hoisting device of this utility model has the following advantages:

[0016] 1. Through the conical fit structure of the split-type lifting rod and the plug-in cylinder, combined with the anti-sway gap design, the displacement of the gas tank is effectively limited, ensuring the alignment of the axis during the lifting process and improving safety and accuracy. Especially in the process of rotating the tank, reducing sway can greatly improve the safety of the operation.

[0017] 2. The combination of grinding wheel, drive roller and chain ring in the transmission rotation mechanism enables the gas tank to rotate smoothly, making it easy to adjust the angle and meet the needs of different processes;

[0018] 3. The detachable design of the flange and pins adapts to the hoisting needs of gas tanks of different specifications. The hoisting hole further expands the applicable scenarios of the device, taking into account the hoisting of both rotating and non-rotating tanks. Attached Figure Description

[0019] Figure 1 This is a hoisting diagram of a heavy-duty pressure gas cylinder centering and hoisting device provided by this utility model;

[0020] Figure 2 This is an overall structural diagram of a heavy-duty pressure gas tank centering and hoisting device provided by this utility model;

[0021] Figure 3This is a schematic diagram of the transmission rotation mechanism in a heavy-duty pressure gas tank centering and hoisting device provided by this utility model;

[0022] In the diagram: 1. Split-type lifting device; 101. Upper lifting frame; 102. Lower lifting frame; 101a. Insertion sleeve; 102a. Insertion rod; 2. Lifting mechanism; 201. Electric hoist; 202. Pulley; 203. Connecting plate; 3. Transmission rotation mechanism; 301. Grinding wheel; 302. Drive roller; 303. Chain link; 304. Drive motor; 305. Bearing; 306. Flange; 307. Insertion pin; 308. Lifting ring. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] This utility model provides a heavy-duty pressure gas cylinder centering and hoisting device. Please refer to [link / reference]. Figures 1-3 The system includes a split-type lifting device 1, which consists of an upper lifting frame 101 and a lower lifting frame 102. The upper lifting frame 101 slides on a crossbeam, and four vertically distributed insertion cylinders 101a are fixed downward on the upper lifting frame 101. The insertion cylinders 101a are evenly distributed and fixedly installed on the outer ring of the upper lifting frame 101. The top of the lower lifting frame 102 is provided with four insertion rods 102a corresponding to the insertion cylinders 101a. The insertion rods 102a are inserted into the insertion cylinders 101a to ensure that the axis of the pressure tank is fixed. A lifting mechanism 2 is used to control the lifting and lowering of the lower lifting frame 102. A transmission rotation mechanism 3 includes a grinding wheel 301 set at the center of the lower lifting frame 102, a plurality of drive rollers 302 evenly distributed around the outer circumference of the grinding wheel 301, a chain ring 303 set outside the drive rollers 302, and a drive motor 304 driving the chain ring 303.

[0028] The contact end face between the insertion rod 102a and the insertion cylinder 101a is tapered. An anti-sway gap of 2-5mm is provided between the insertion rod 102a and the inner wall of the insertion cylinder 101a to allow for buffering. The grinding wheel 301 is connected to the lower hanger 102 via a bearing 305. The outer wall of the grinding wheel 301 has annular friction patterns. There are 3-6 driving rollers 302, evenly distributed along the outer circumference of the grinding wheel 301, with the axis of each driving roller 302 parallel to the axis of the grinding wheel 301. The lifting mechanism 2 includes an electric hoist 201. The steel rope of the electric hoist 201 is connected to the pulley 202. The bottom of the pulley 202 is installed above the lower hanger 102 through the connecting plates 203 on both sides. The bottom of the grinding wheel 301 is provided with a flange 306. The flange 306 is connected to the top of the gas tank through a pin. The pin hole passes through the flange and the gas tank lifting area. After the pin rod 307 is inserted, it restricts the relative rotation between the grinding wheel 301 and the gas tank. The edge of the flange 306 is also provided with a lifting ring 308. The lifting ring 308 is detachably connected to a lifting hook for quick lifting of the tank in processes where there is no need for rotation.

[0029] It should be noted that the split-type lifting device 1 is made of high-strength steel and includes an upper lifting frame 101 and a lower lifting frame 102. The upper lifting frame 101 has a rectangular structure and can move horizontally on the top crossbeam via a slide rail. The bottom four corners of the upper lifting frame 101 are welded with evenly distributed plug-in cylinders 101a, which are cylindrical with an inner diameter of 80mm. The top of the lower lifting frame 102 is welded with four corresponding plug rods 102a. The plug rods 102a have a diameter of 76mm. The radial gap formed when the plug rods 102a and the plug-in cylinders 101a are engaged ensures the centering accuracy while allowing for a slight sway buffer.

[0030] Preferably, the core of the lifting mechanism 2 is an electric hoist 201, which is connected to a pulley 202 via a steel cable. The electric hoist 201 is fixedly installed inside the upper frame 101, while the pulley 202 is fixed to the lower frame 102 via a connecting plate 203. The lower frame 102 can be raised and lowered by the electric hoist 201 winding and unwinding the steel cable. During the raising and lowering process, the insertion rod 102a will slowly penetrate into the insertion cylinder 101a to achieve centering and prevent the tank from shaking.

[0031] Preferably, the grinding wheel 301 is made of wear-resistant high-manganese steel casting, and the outer surface is machined with a V-shaped annular friction pattern with a depth of 5mm to improve the friction coefficient. There are four drive rollers 302, which are evenly surrounded around the outer circumference of the grinding wheel 301. The four drive rollers 302 are limited by a transmission ring, so that the rollers 302 rotate around the grinding wheel 301 in a circle. The outer wall of the drive rollers 302 also meshes with the inner ring of the chain ring 303 through toothed engagement. The chain ring 303 is driven by the drive motor 304, which drives the drive rollers 302 to rotate around the transmission ring. The friction drives the grinding wheel 301 to rotate. A flange 306 is bolted to the lower surface of the grinding wheel 301. The flange 306 is connected to the top of the gas tank through a pin structure, thereby driving the gas tank to rotate and realizing the rotation and hoisting function of this device.

[0032] Preferably, the flange 306 also has 6 lifting rings 308 evenly distributed along its edge, which are connected to the hook using quick shackles. When lifting gas cylinders that do not require rotation, the use of the hook is more convenient and faster.

[0033] In summary, the heavy-duty pressure gas tank centering and lifting device of this embodiment has several technical advantages. First, in terms of centering stability, the split-type lifting tool's insert rod and insert sleeve conical fit structure, combined with a 2-5mm anti-sway gap design, not only effectively suppresses the offset and sway during the gas tank lifting process, but also achieves precise alignment of the gas tank's axis, improving lifting stability by more than 60%, significantly reducing operational risks, especially in processes requiring rotational adjustment. Second, in terms of rotational control, the combination of grinding wheel-drive roller-chain ring transmission, combined with a drive motor, ensures smooth and reliable rotation. In addition, the device has excellent adaptability; the flange allows for quick assembly and disassembly of the gas tank via pins, and the lifting holes further expand the device's application scenarios, accommodating both rotating and non-rotating tank lifting needs.

[0034] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A centering hoisting device for heavy pressure gas tanks, characterized in that include: The split-type lifting device (1) consists of an upper lifting frame (101) and a lower lifting frame (102). The upper lifting frame (101) slides on the crossbeam. The upper lifting frame (101) has multiple vertically distributed plug tubes (101a) fixed downwards. The plug tubes (101a) are evenly distributed and fixedly installed on the outer ring of the upper lifting frame (101). The top of the lower lifting frame (102) is provided with multiple plug rods (102a) corresponding to the plug tubes (101a). The plug rods (102a) are inserted into the plug tubes (101a) to ensure that the axis of the pressure tank is fixed. The lifting mechanism (2) is used to control the lifting of the lower hanger (102); The transmission rotation mechanism (3) includes a grinding wheel (301) disposed at the center of the lower hanger (102), a plurality of drive rollers (302) evenly distributed around the outer circumference of the grinding wheel (301), a chain ring (303) disposed outside the drive rollers (302), and a drive motor (304) driving the chain ring (303).

2. The heavy-duty pressure gas tank centering and hoisting device as described in claim 1, characterized in that, The contact end face of the insertion rod (102a) and the insertion tube (101a) is a conical structure. An anti-sway gap is provided between the insertion rod (102a) and the inner wall of the insertion tube (101a), with a gap width of 2 to 5 mm, to reserve buffer space.

3. A centering hoisting device for heavy pressure vessels as claimed in claim 1, characterized in that The grinding wheel (301) is connected to the lower hanger (102) via a bearing (305), and the outer wall of the grinding wheel (301) is provided with annular friction patterns.

4. A centering lifting device for heavy pressure vessels as claimed in claim 3, characterized in that The number of drive rollers (302) is 3 to 6, which are evenly distributed along the outer circumference of the grinding wheel (301), and the axis of each drive roller (302) is parallel to the axis of the grinding wheel (301).

5. The heavy-duty pressure gas tank centering and hoisting device as described in claim 1, characterized in that, The lifting mechanism (2) includes an electric hoist (201), the steel rope of the electric hoist (201) is connected to a pulley (202), and the bottom of the pulley (202) is installed above the lower hanger (102) through connecting plates (203) on both sides.

6. A centering hoist for heavy pressure vessels as defined in claim 1, wherein The grinding wheel (301) is provided with a flange (306) at the bottom. The flange (306) is connected to the top of the gas tank by a pin. The pin hole passes through the flange and the gas tank hoisting area. After the pin rod (307) is inserted, it restricts the relative rotation between the grinding wheel (301) and the gas tank.

7. A centering lifting device for heavy pressure vessels as claimed in claim 6, characterized in that The flange (306) is also provided with a lifting ring (308) on its edge. The lifting ring (308) is detachably connected to a lifting hook for quick lifting of the tank in processes where there is no need for rotation.

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