A lifting device for a hot dip galvanizing process

Abstract

A kind of lifting appliance for hot galvanizing process, including upper base plate and lower base plate arranged in parallel, and the edge of upper base plate and the edge of lower base plate are connected by several linear actuators, the middle part of upper base plate is movably connected with multiple lifting ropes, the lower end of lifting rope is fixedly connected with connecting block, connecting block is fixedly connected with hook by hanging rod, the middle part of lower base plate is provided with multiple taper holes, and the small end of taper hole faces upper base plate, in the process that linear actuator acts and drives lower base plate away from upper base plate, connecting block can be inserted into taper hole and move to the small end of taper hole.The utility model provides a kind of lifting appliance for hot galvanizing process, can adjust the positional relationship of upper base plate and lower base plate by linear actuator, to lock or release connecting block further, when connecting block is locked, hanging rod and hook are locked too, it is convenient to hang steel piece on hook.

Description

Technical Field

[0001] This utility model relates to the field of hot-dip galvanizing lifting tools, specifically a lifting tool used in the hot-dip galvanizing process. Background Technology

[0002] Hot-dip galvanizing is a process in which molten metal reacts with an iron substrate to create an alloy layer, thus bonding the substrate and the coating together. Hot-dip galvanizing offers advantages such as uniform coating, strong adhesion, and long service life.

[0003] When hot-dip galvanizing steel components, a lifting device is needed to suspend the components before transferring them to the galvanizing tank. Commonly used lifting devices typically consist of a horizontal boom with multiple hooks fixed to its upper side and multiple slings connected to its lower side. Hooks are attached to the lower ends of the slings to suspend the steel components. In use, the lifting device must first be placed on the ground so workers can hang the steel frame on the hooks. However, during this process, the slings easily become tangled, requiring workers to untangle them. To ensure strength, the slings are relatively large and heavy, making untangling them laborious and inefficient. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lifting device for hot-dip galvanizing processes. It can adjust the positional relationship between the upper and lower substrates via a linear actuator, thereby locking or releasing the connecting block. When the connecting block is locked, the hanging rod and hook are also locked, making it easy to suspend steel parts on the hook.

[0005] To achieve the above objectives, the specific solution adopted by this utility model is as follows: a lifting device for hot-dip galvanizing process, comprising an upper substrate and a lower substrate arranged in parallel, wherein the edges of the upper substrate and the lower substrate are connected by a number of linear actuators, and multiple lifting cables are movably connected to the middle of the upper substrate, with a connecting block fixedly connected to the lower end of the lifting cable, and a hook fixedly connected to the connecting block by a hanging rod, wherein multiple conical holes are opened in the middle of the lower substrate, and the small end of the conical hole faces the upper substrate, and during the process of the linear actuators moving and driving the lower substrate away from the upper substrate, the connecting block can be inserted into the conical hole and move towards the small end of the conical hole.

[0006] As a further optimization of the above-mentioned lifting device for hot-dip galvanizing process: a plurality of fixing rods are fixedly connected to the middle of the upper base plate, a first connecting ring is provided on the fixing rod, and a second connecting ring is connected to the upper end of the sling. The first connecting ring and the second connecting ring cooperate to movably connect the sling to the upper base plate.

[0007] As a further optimization of the above-mentioned lifting device for hot-dip galvanizing process: at least one lifting ring is fixedly connected to the side of the upper substrate facing away from the lower substrate.

[0008] As a further optimization of the above-mentioned lifting device for hot-dip galvanizing process: the large end of the conical hole is connected to a circular hole, the connecting block is conical, and the small end of the connecting block faces the upper substrate.

[0009] As a further optimization of the aforementioned lifting device for hot-dip galvanizing process: a friction layer is fixedly provided on the peripheral sidewall of the connecting block.

[0010] As a further optimization of the above-mentioned lifting device for hot-dip galvanizing process: the small end of the connecting block is fixedly connected to a connecting seat, and the connecting seat has a connecting hole, through which the sling can pass.

[0011] As a further optimization of the above-mentioned lifting device for hot-dip galvanizing process: the large end of the connecting block is fixedly connected to an inner sleeve, and the hanging rod is located in the inner sleeve.

[0012] As a further optimization of the above-mentioned lifting device for hot-dip galvanizing process: an outer sleeve is fitted on the inner sleeve, and the outer sleeve is fixedly connected to the large end of the connecting block. The outer sleeve and the hanging rod are fixedly connected by a first fastening bolt, and the outer sleeve, inner sleeve and hanging rod are fixedly connected by a second fastening bolt.

[0013] As a further optimization of the aforementioned lifting device for hot-dip galvanizing process: the first fastening bolt and the second fastening bolt are oriented in opposite directions.

[0014] As a further optimization of the aforementioned lifting device for the hot-dip galvanizing process, the linear actuator is configured as a hydraulic cylinder.

[0015] Beneficial effects: This utility model can adjust the positional relationship between the upper and lower base plates through a linear actuator, thereby locking or releasing the connecting block. When the connecting block is locked, the hanging rod and hook are also locked, making it easy to suspend the steel parts on the hook. When the connecting block is released, the hanging rod, hook and steel parts can move, avoiding excessive force on the hanging rod during transportation, thus protecting the hanging rod and extending the service life of the lifting device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the fit between the connecting block and the tapered hole; Figure 3 This is a schematic diagram showing the state when the connecting block is fixed. Figure 4 This is a schematic diagram of the connection method between the connecting block and the hanging rod.

[0017] Figure description: 1-Upper base plate, 2-Lifting ring, 3-Fixing rod, 4-First connecting ring, 5-Second connecting ring, 6-Lifting cable, 7-Linear actuator, 8-Lower base plate, 9-Conical hole, 10-Round hole, 11-Connecting block, 12-Hanging rod, 13-Hook, 14-Friction layer, 15-Inner sleeve, 16-Outer sleeve, 17-First fastening bolt, 18-Second fastening bolt, 19-Connecting seat, 20-Connecting hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 As shown, a lifting device for hot-dip galvanizing includes an upper substrate 1 and a lower substrate 8 arranged in parallel. The edges of the upper substrate 1 and the lower substrate 8 are connected by a plurality of linear actuators 7. A plurality of lifting cables 6 are movably connected to the middle of the upper substrate 1. A connecting block 11 is fixedly connected to the lower end of the lifting cable 6. A hook 13 is fixedly connected to the connecting block 11 through a hanging rod 12. A plurality of conical holes 9 are opened in the middle of the lower substrate 8, and the small end of the conical hole 9 faces the upper substrate 1. When the linear actuators 7 are activated and drive the lower substrate 8 away from the upper substrate 1, the connecting block 11 can be inserted into the conical hole 9 and move towards the small end of the conical hole 9.

[0020] When using the lifting device of this utility model to perform hot-dip galvanizing on steel parts, the lower base plate 8 is first driven away from the upper base plate 1 by the linear actuator 7. Because the length of the lifting cable 6 is fixed, the connecting block 11 will gradually approach the lower base plate 8 during the movement of the lower base plate 8. After the connecting block 11 enters the conical hole 9, the lower base plate 8 continues to move, which allows the connecting block 11 to move towards the small end of the conical hole 9. Finally, the connecting block 11 is pressed against the inner wall of the conical hole 9, thereby fixing the position of the connecting block 11. Figure 3 As shown. Since the hanging rod 12 and hook 13 are fixedly connected to the connecting block 11, the hanging rod 12 and hook 13 are also fixed after the connecting block 11 is fixed. At this time, all the hanging rods 11 are parallel to each other and will not interfere with each other, thus facilitating the hanging of the steel parts on the hooks 13. After all the steel parts are hung on the hooks 13, the linear actuator 7 can reset and pull the lower base plate 8 closer to the upper base plate 1. During this process, the connecting block 11 can extend from the tapered hole 9, thus freeing the connecting block 11 from being fixed, as shown. Figure 2As shown. Since the connecting block 11 is connected to the upper base plate 1 via the sling 6, it can move flexibly after separating from the lower base plate 8, thus allowing the hanging rod 12, hook 13, and the suspended steel parts to move. During the transfer of the steel parts using the lifting device, excessive force on the hanging rod 12 during acceleration and deceleration can be avoided, preventing it from bending. In one embodiment of this utility model, the linear actuator 7 is configured as a hydraulic cylinder.

[0021] This invention can adjust the positional relationship between the upper substrate 1 and the lower substrate 8 through the linear actuator 7, thereby locking or releasing the connecting block 11. When the connecting block 11 is locked, the hanging rod 12 and the hook 13 are also locked, making it easy to suspend the steel parts on the hook. When the connecting block 11 is released, the hanging rod 12, the hook 13 and the steel parts can move, avoiding excessive force on the hanging rod 12 during transportation, thus protecting the hanging rod 12 and extending the service life of the lifting device.

[0022] The specific connection method between the sling 6 and the upper base plate 1 is as follows: multiple fixing rods 3 are fixedly connected to the middle of the upper base plate 1, and a first connecting ring 4 is provided on the fixing rod 3. A second connecting ring 5 is connected to the upper end of the sling 6. The first connecting ring 4 and the second connecting ring 5 cooperate to movably connect the sling 6 to the upper base plate 1. More specifically, the first connecting ring 4 and the second connecting ring 5 are nested with each other, which is a conventional connection method and will not be described in detail here. The connection between the sling 6 and the fixing rods 3 is achieved through the first connecting ring 4 and the second connecting ring 5, so that the sling 6 can move flexibly and ensure that the hanging rod 12 and the hook 13 can also move flexibly after the connecting block 11 is released.

[0023] After the steel parts are suspended on the hook 13, at least one lifting ring 2 is fixedly connected to the side of the upper base plate 1 facing away from the lower base plate 8 to facilitate the overall transfer of the lifting device and all steel parts. Conventional equipment such as overhead cranes can be used to lift the lifting device through the lifting ring 2 to transfer the steel parts, which is a conventional technique in the art and will not be described in detail here.

[0024] Furthermore, the large end of the conical hole 9 is connected to the circular hole 10, and the connecting block 11 is conical, with the small end of the connecting block 11 facing the upper substrate 1. During the process of the linear actuator 7 operating and driving the lower substrate 8 away from the upper substrate 1, the small end of the connecting block 11 first enters the circular hole 10. Through the cooperation between the peripheral sidewall of the connecting block 11 and the inner wall of the circular hole 10, the direction of the connecting block 11 can be guided, ensuring that the connecting block 11 can smoothly enter the conical hole 9 and is finally fixed in the conical hole 9.

[0025] To improve the stability of the connecting block 11 after it is fixed, a friction layer 14 is fixedly provided on the peripheral sidewall of the connecting block 11. The material of the friction layer 14 can be determined according to actual needs; for example, the friction layer 14 can be set as a silicon carbide particle layer.

[0026] The connection between the connecting block 11 and the sling 6 is as follows: a connecting seat 19 is fixedly connected to the small end of the connecting block 11, and a connecting hole 20 is provided on the connecting seat 19, through which the sling 6 can pass. The sling 6 can also be connected to the connecting seat 19 by a third connecting ring, specifically by passing the third connecting ring through the connecting hole 20. This is a conventional technique in the field and will not be described in detail here.

[0027] like Figure 4 As shown, to ensure the connection strength between the connecting block 11 and the hanging rod 12, an inner sleeve 15 is fixedly connected to the large end of the connecting block 11, and the hanging rod 12 is located in the inner sleeve 15. An outer sleeve 16 is fitted onto the inner sleeve 15, and the outer sleeve 16 is fixedly connected to the large end of the connecting block 11. The outer sleeve 16 and the hanging rod 12 are fixedly connected by a first fastening bolt 17, and the outer sleeve 16, the inner sleeve 15, and the hanging rod 12 are fixedly connected by a second fastening bolt 18.

[0028] Furthermore, the first fastening bolt 17 and the second fastening bolt 18 are oriented in opposite directions.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting device for hot-dip galvanizing process, characterized in that, The system includes an upper substrate (1) and a lower substrate (8) arranged in parallel. The edges of the upper substrate (1) and the lower substrate (8) are connected by several linear actuators (7). Several slings (6) are movably connected to the middle of the upper substrate (1). A connecting block (11) is fixedly connected to the lower end of the slings (6). A hook (13) is fixedly connected to the connecting block (11) through a hanging rod (12). Several conical holes (9) are opened in the middle of the lower substrate (8). The small end of the conical hole (9) faces the upper substrate (1). During the process of the linear actuator (7) moving and driving the lower substrate (8) away from the upper substrate (1), the connecting block (11) can be inserted into the conical hole (9) and move towards the small end of the conical hole (9).

2. The lifting device for hot-dip galvanizing process as described in claim 1, characterized in that, A plurality of fixing rods (3) are fixedly connected to the middle part of the upper base plate (1). A first connecting ring (4) is provided on the fixing rod (3). A second connecting ring (5) is connected to the upper end of the sling (6). The first connecting ring (4) and the second connecting ring (5) cooperate to movably connect the sling (6) to the upper base plate (1).

3. A lifting device for hot-dip galvanizing as described in claim 1, characterized in that, At least one lifting ring (2) is fixedly connected to the side of the upper substrate (1) facing away from the lower substrate (8).

4. A lifting device for hot-dip galvanizing as described in claim 1, characterized in that, The large end of the conical hole (9) is connected to the circular hole (10), the connecting block (11) is conical, and the small end of the connecting block (11) faces the upper substrate (1).

5. A lifting device for hot-dip galvanizing as described in claim 4, characterized in that, A friction layer (14) is fixedly provided on the peripheral sidewall of the connecting block (11).

6. A lifting device for hot-dip galvanizing as described in claim 4, characterized in that, The small end of the connecting block (11) is fixedly connected to a connecting seat (19), and a connecting hole (20) is provided on the connecting seat (19), through which the sling (6) can pass.

7. A lifting device for hot-dip galvanizing as described in claim 4, characterized in that, The large end of the connecting block (11) is fixedly connected to the inner sleeve (15), and the hanging rod (12) is located in the inner sleeve (15).

8. A lifting device for hot-dip galvanizing as described in claim 7, characterized in that, The inner sleeve (15) is fitted with an outer sleeve (16), and the outer sleeve (16) is fixedly connected to the large end of the connecting block (11). The outer sleeve (16) and the hanging rod (12) are fixedly connected by the first fastening bolt (17), and the outer sleeve (16), the inner sleeve (15) and the hanging rod (12) are fixedly connected by the second fastening bolt (18).

9. A lifting device for hot-dip galvanizing as described in claim 8, characterized in that, The first fastening bolt (17) and the second fastening bolt (18) are in opposite directions.

10. A lifting device for hot-dip galvanizing as described in claim 1, characterized in that, The linear actuator (7) is configured as a hydraulic cylinder.

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