Hoisting tool for amine high-pressure flash vessel plate
By designing a lifting tool consisting of a lifting body and a clamp, the gravity of the sheet metal is converted into clamping force, solving the safety and efficiency problems of vertical lifting of sheet metal and realizing an efficient and safe sheet metal lifting process.
Patent Information
- Application Number
- CN202423318251.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the existing technology, vertical lifting tools for sheet metal have the problem of not being able to clamp and store them vertically efficiently, safely and reliably, which leads to the lifting process being labor-intensive and resource-intensive, and there is a risk of damage or slippage of the sheet metal.
A lifting tool comprising a lifting body, clamps, and sling assemblies was designed. It utilizes the gravity of the sheet material to convert it into clamping force, and the traction of the sling assembly reduces the clamping space between the clamps, ensuring that the sheet material can be firmly clamped during both vertical lifting and horizontal placement, thus avoiding damage.
This method enables safe and efficient hoisting of sheet metal, reduces manpower and material consumption, lowers the risk of sheet metal damage, and improves hoisting efficiency and stability.
Smart Images
Figure CN223592225U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hoisting technology, and in particular to a special hoisting tool for hoisting large plates. Background Technology
[0002] Pressure vessels are required during the high-pressure flash evaporation of amines. A large number of plates are needed when manufacturing pressure vessels, and hoisting tools are required to move the plates during construction.
[0003] In existing technologies, flat lifting is often used to hoist steel plates because they are typically laid flat. However, this requires stacking the plates layer by layer. When a plate at the bottom is needed, all the plates on top must be hoisted away to a temporary location, the required plate retrieved, and then the hoisted plates returned. This process is extremely labor-intensive, resource-intensive, and inefficient. Therefore, vertical placement of the plates has become more common. While vertical placement effectively reduces the number of lifting steps, it presents new challenges. The space between plates is very small, and currently, the only tool available for vertical lifting is vertical clamps. If the clamps apply too much tension, they can damage the steel plate. Conversely, if the tension is too low, the plate may slip, posing a safety hazard.
[0004] Therefore, there is an urgent need for a vertical lifting tool for sheet materials, which can be used to safely and efficiently lift the sheet materials when they are stored and managed vertically, making the production process more convenient. Utility Model Content
[0005] The purpose of this application is to provide a hoisting tool for amine high-pressure flash evaporation vessel plates, so as to solve the problem in the prior art that it is impossible to efficiently, safely and reliably clamp vertically stored plates.
[0006] The embodiments of this application can be implemented through the following technical solutions:
[0007] A lifting tool for amine high-pressure flash evaporation container plates includes a lifting body, clamps, and a sling assembly. The lifting body has clamps connected to both ends. The sling assembly is connected to the clamps at both ends of the lifting body, and the clamps connected to the sling assembly are movably connected to the lifting body. Under the traction of the sling assembly, the clamping space between the two clamps continuously decreases.
[0008] Furthermore, the sling assembly is slidably connected to the middle of the lifting device body and is divided into two slings, which are respectively connected to the clamps at both ends of the lifting device body.
[0009] Furthermore, one end of the clamp is rotatably connected to the main body of the lifting device and is detachably connected to the main body of the lifting device.
[0010] Furthermore, a limit protrusion is provided at the other end of the clamp.
[0011] Furthermore, an anti-slip pad is provided on the inner side of the clamping end of the clamp.
[0012] Furthermore, the sling assembly is slidably connected to the lifting device body via guide wheels.
[0013] Furthermore, the guide wheel includes three intermediate guide wheels arranged in a triangle and connected to the middle of the lifting device body, with two of the intermediate guide wheels located on one side adjacent to the clamping space.
[0014] Furthermore, the sling assembly includes a first sling, a second sling, a third sling, and a sling merging section. The second sling and the third sling are merged into the first sling through the sling merging section. The second sling and the third sling are respectively connected to the clamp through the intermediate guide wheel.
[0015] Furthermore, the guide wheel also includes a guide wheel and two end guide wheels, the two end guide wheels cooperate to form a limiting assembly, and the first sling is obliquely connected to the limiting gap of the limiting assembly through the guide wheel;
[0016] The end guide wheel and the intermediate guide wheel are arranged along the length direction of the lifting device body.
[0017] Furthermore, it also includes lifting lugs, which are connected to the side of the lifting device body.
[0018] The lifting tool for the plate of an amine high-pressure flash evaporation vessel provided in the embodiments of this application has at least the following beneficial effects:
[0019] This application ingeniously utilizes the gravity of the sheet metal, converting the gravity during the lifting process into a clamping force through a sling assembly. This allows the sheet metal to be lifted within a reasonable clamping force range. Furthermore, when the vertical lifting of the sheet metal is changed to horizontal placement, the two clamps can still apply a clamping force to the sheet metal under the traction force of the sling assembly. As the force changes, the clamping force of the clamps also changes, but regardless of the change, it can still ensure that the sheet metal is firmly clamped between the two clamps. This application has advantages such as ingenious structure, convenient lifting, and strong practicality.
[0020] In addition, compared with traditional hoisting methods, this specialized vertical hoisting device for sheet materials can quickly fix and hoist the sheet materials, especially for batch hoisting of sheet materials, which can save a lot of time.
[0021] In addition, during hoisting, the clamps support the bottom of the plate, which can protect the plate and greatly reduce the possibility of damage. This also means less subsequent repair work and thus saves construction time. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the hoisting tool for the plate of an amine high-pressure flash evaporation vessel according to this application;
[0023] Figure 2 This is a schematic diagram illustrating the preparation stage of the hoisting tool used in the hoisting scenario of the amine high-pressure flash evaporation vessel plate in this application;
[0024] Figure 3 , Figure 4 These are schematic diagrams of the lifting stages from different perspectives in the lifting tool hoisting scenario of the amine high-pressure flash evaporation vessel plate of this application;
[0025] Figure 5 , Figure 6 These are schematic diagrams illustrating different stages in the process of adjusting from vertical lifting to horizontal placement during the hoisting of amine high-pressure flash evaporation vessel plates, as described in this application.
[0026] Numbers in the diagram
[0027] 1-Lifting device body; 2-Clamping device; 21-Clamping shaft; 22-Limiting protrusion; 3-Sling assembly; 31-First sling; 32-Second sling; 33-Third sling; 34-Sling merging section; 4-Guide wheel; 41-Intermediate guide wheel; 42-Guide wheel; 43-End guide wheel; 5-Lifting lug; 6-Hook. Detailed Implementation
[0028] The present application will now be further described based on preferred embodiments and with reference to the accompanying drawings.
[0029] In addition, for ease of understanding, various components on the drawings have been enlarged (thickened) or reduced (thinned), but this is not intended to limit the scope of protection of this application.
[0030] Singular forms of words also include plural meanings, and vice versa.
[0031] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use, they are only for the convenience of describing this application 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 on this application. In addition, in the description of this application, in order to distinguish different units, the terms "first," "second," etc. are used in this specification, but these are not limited by the manufacturing order, nor should they be construed as indicating or implying relative importance. Their names may differ in the detailed description and claims of this application.
[0032] The vocabulary used in this specification is for illustrative purposes and is not intended to limit the scope of this application. It should also be noted that, unless otherwise expressly specified and limited, the terms "set," "connected," and "linked" 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, a direct connection, or an indirect connection via an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of these terms in this application.
[0033] A lifting tool for a plate in an amine high-pressure flash evaporation container includes a lifting body 1, clamps 2, and a sling assembly 3. Clamps 2 are connected to both ends of the lifting body 1. The sling assembly 3 is connected to the clamps 2 at both ends of the lifting body 1, and the clamps 2 are movably connected to the lifting body 1. Under the traction of the sling assembly 3, the clamping space between the two clamps 2 continuously decreases. This means that when the plate is vertically clamped, as the plate is gradually lifted, the tension of the sling assembly 3 continuously increases under the weight of the plate until the clamps 2 are pulled by the sling assembly 3 to clamp the plate. When the tension of the sling assembly 3 is balanced with the weight of the plate, the traction force applied by the sling assembly 3 to the clamps 2 will no longer increase. At this point, it can be ensured that the plate is clamped between the two clamps 2 without being damaged due to excessive clamping force.
[0034] In some preferred embodiments, one end of the clamp 2 is rotatably connected to the lifting device body 1 and detachably connected to the lifting device body 1. For example, the lifting device body 1 and the clamp 2 are rotatably connected by a pivot pin, so that the clamp 2 can rotate around the pivot pin to open or clamp, thereby realizing a variable clamping space between the clamps 2.
[0035] In some preferred embodiments, the clamp 2 may also be configured to be slidably connected to the lifting device body 1. Under the action of traction force, the clamp 2 slides along the length direction of the lifting device body 1 toward the clamp 2 located on the opposite side. The specific form is not further limited here.
[0036] In some preferred embodiments, the other end of the clamp 2 is provided with a limiting protrusion 22, which extends away from the main body of the clamp 2 and toward its side, so that the clamp 2 is "L" shaped, which is used to limit the plate held in the clamp 2 and prevent the plate from falling out of the clamp 2 during the transfer process.
[0037] In some preferred embodiments, an anti-slip pad is provided on the inner side of the clamping end of the clamp 2, such as a rubber pad or other anti-slip material, to increase the friction between the clamp 2 and the plate.
[0038] In some preferred embodiments, the lifting device body 1 is made of metal (such as carbon steel) and is generally a frame structure. It has sufficient strength and rigidity to bear the weight of the plate. The size of the frame is designed according to the size of the plate to be lifted (usually the size is fixed).
[0039] In some preferred embodiments, a lifting lug 5 is connected to the outer side of the lifting body 1, the lifting lug 5 being used to connect to the hook of a crane or other lifting equipment.
[0040] In some preferred embodiments, the number of lifting lugs 5 is two, and the two lifting lugs 5 are respectively disposed on the top edge and the tail edge of the lifting device body 1, and they are both connected to the corresponding side of the lifting device body 1.
[0041] Of course, the number of lifting lugs 5 can be designed to be multiple as needed. Multiple lifting lugs 5 can distribute the lifting force more evenly and ensure the stability of the lifting process.
[0042] In some preferred embodiments, the sling assembly 3 is slidably connected to the lifting device body 1 via a guide wheel 4. The guide wheel 4 is a pulley structure, which is used to realize the sliding displacement between the sling assembly 3 and the lifting device body 1 through the rotation of the guide wheel 4, thereby reducing the frictional resistance during hoisting.
[0043] In some preferred embodiments, the guide wheel 4 includes three intermediate guide wheels 41 arranged in a triangle and connected to the middle of the lifting device body 1, with two of the intermediate guide wheels located within the clamping space.
[0044] Furthermore, one end of the sling assembly 3 is slidably connected to the middle of the lifting device body 1 via the intermediate guide wheel 41, and is divided into two slings. The two slings are respectively connected to the clamps 2. Both clamps 2 are rotatably connected to the lifting device body 1, so that when the sling assembly 3 is pulled up, it can pull the two clamps 2 to move towards the clamping space, so that the clamping space gradually shrinks from both ends until the two clamps 2 clamp the ends of the plate, increasing the stability and reliability of clamping the plate.
[0045] Specifically, the sling assembly 3 includes a first sling 31, a second sling 32, a third sling 33, and a sling merging section 34. The first sling 31, the second sling 32, and the third sling 33 are all steel wire ropes. The second sling 32 and the third sling 33 are merged into the first sling 31 through the sling merging section 34. The second sling 32 and the third sling 33 are respectively connected to the clamps 2 through the intermediate guide wheel 41. This ensures that when the vertical hoisting is changed to the horizontal placement of the plate, the two clamps 2 can still be subjected to the traction force of the sling assembly 3, and thus continue to apply clamping force to the plate. This ensures that no matter how the hoisting position changes, the plate can be firmly clamped between the two clamps 2.
[0046] In some preferred embodiments, the guide wheel 4 further includes a guide wheel 42 and two end guide wheels 43. The two end guide wheels 43 cooperate to form a limiting assembly. The first sling 31 is obliquely connected to the limiting gap of the limiting assembly through the guide wheel 42, and is used to limit the first sling 31 by the limiting assembly.
[0047] Furthermore, the end guide wheel 43 and the intermediate guide wheel 41 are arranged along the length direction of the lifting device body 1 to optimize the orientation of the sling assembly 3, so that the sling assembly 3 is set at an angle, which improves the lifting efficiency, ensures the stability of the lifting, and reduces the unfavorable contact angle between the wire rope and the pulley, thereby reducing friction and wear and extending the service life of the wire rope.
[0048] In some preferred embodiments, the clamp 2 further includes a clamping shaft 21 through which the wire rope is connected to the clamp 2 to increase the stability of the connection.
[0049] The following combination Figures 2 to 6 The preferred embodiment of this application in a hoisting scenario will be described below:
[0050] (1) Lifting tool preparation stage: When vertical plates need to be lifted, use a gantry crane or truck crane to connect the hook 6 to the lifting lug 5 of the lifting tool, lift a set (two) of lifting tools to the side of the plate, and lift the lifting tools to the same height as the plate. The upper clamp 2 is in a horizontal position under the action of gravity, and the lower clamp 2 is in an open position under the action of gravity. The lifting personnel can adjust the angle of the lower plate clamp locking device to ensure that the internal space of the clamp is greater than the width of the plate, and then move the lifting tool to move laterally closer to the plate.
[0051] (2) Plate lifting stage: After the lifting device is close to the plate, the crane slowly lifts the sling assembly 3. As the crane pulls the sling assembly 3 upward, the sling through the guide wheel 42 and the clamping shaft 21 will pull the clamp 2 to one side of the plate, so that the plate is tightly clamped in the middle of the lifting device. When the lifting continues upward, the plate is always subjected to gravity, so the continuous tension can be guaranteed to prevent the plate from falling off.
[0052] (3) Plate leveling stage: After hoisting to the designated position, the plate is slowly placed into the designated position, and the tail lug 5 is used to adjust the plate to a horizontal position and then slowly place it on the ground. Then the sling assembly 3 is released. After the clamp 2 is no longer under the traction force of the sling assembly 3, the operator can manually adjust the clamp 2 to remove the plate from the clamp and retrieve the hoist. The plate can be used for subsequent production processes.
[0053] The specific embodiments of this application have been described in detail above. For those skilled in the art, several improvements and modifications can be made to this application without departing from the principle of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. A hoisting tool for amine high-pressure flash evaporation vessel plates, characterized in that, include: The lifting device consists of a main body (1), a clamp (2), and a sling assembly (3). The main body (1) is connected to the clamps (2) at both ends. The sling assembly (3) is connected to the clamps (2) at both ends of the main body (1), and the clamps (2) are movably connected to the main body (1). Under the traction of the sling assembly (3), the clamping space between the two clamps (2) continuously shrinks.
2. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 1, characterized in that: The sling assembly (3) is slidably connected to the middle part of the lifting device body (1) and is divided into two slings. The two slings are respectively connected to the clamps (2) at both ends of the lifting device body (1).
3. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 1, characterized in that: One end of the clamp (2) is rotatably connected to the lifting device body (1) and is detachably connected to the lifting device body (1).
4. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 3, characterized in that: The other end of the clamp (2) is provided with a limiting protrusion (22).
5. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 1, characterized in that: The gripper (2) has an anti-slip pad on the inner side of its gripping end.
6. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 1, characterized in that: The sling assembly (3) is slidably connected to the lifting device body (1) via guide wheels (4).
7. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 6, characterized in that: The guide wheel (4) includes three intermediate guide wheels (41), which are arranged in a triangle and connected to the middle of the lifting device body (1). Two of the intermediate guide wheels (41) are located on one side adjacent to the clamping space.
8. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 7, characterized in that: The sling assembly (3) includes a first sling (31), a second sling (32), a third sling (33), and a sling merging section (34). The second sling (32) and the third sling (33) are merged into the first sling (31) through the sling merging section (34). The second sling (32) and the third sling (33) are respectively connected to the clamp (2) through the intermediate guide wheel (41).
9. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 8, characterized in that: The guide wheel (4) also includes a guide wheel (42) and two end guide wheels (43). The two end guide wheels (43) cooperate to form a set of limiting components. The first sling (31) is obliquely connected to the limiting gap of the limiting components through the guide wheel (42). The end guide wheel (43) and the intermediate guide wheel (41) are arranged along the length direction of the lifting device body (1).
10. The hoisting tool for the amine high-pressure flash evaporation vessel plate according to claim 1, characterized in that: It also includes a lifting lug (5), which is connected to the side of the lifting body (1).