Anti-floating lifting appliance for hot galvanizing
By designing an anti-floating sling for hot-dip galvanizing and fixing the radiator with a beam, the problem of the radiator floating out of the zinc liquid level due to buoyancy during the galvanizing process is solved, and the uniformity of galvanizing and the stability of the equipment are improved.
Patent Information
- Application Number
- CN202421049579.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In the prior art, the radiator is susceptible to buoyancy during the hot-dip galvanizing process and floats out of the zinc liquid level, affecting the uniformity of the galvanizing.
A hot-dip galvanized anti-floating sling is designed. By setting a cross beam at the bottom of the frame of the spreader, a fixing member is provided on the cross beam to fix the radiator. The lifting device drives the hammock and the spreader to move the cross beam to press the radiator into the zinc liquid to ensure that it is completely immersed.
It effectively prevents the radiator from floating out of the zinc liquid level due to buoyancy during the galvanizing process, improves the uniformity of galvanizing, and enhances the stability of the beam through the support rod, reducing the possibility of deformation.
Smart Images
Figure CN222630812U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of hot-dip galvanizing technology, and in particular to an anti-floating lifting device for hot-dip galvanizing. Background Art
[0002] Radiators are important and basic components in hot water (or steam) heating systems. Hot water cools down in the radiator (or steam condenses in the radiator) and supplies heat to the room to achieve the purpose of heating. In order to increase the service life of the radiator, galvanizing is usually used. Galvanizing is an anti-corrosion treatment method that can effectively protect the radiator from corrosion and oxidation. It is the most basic and economical method for anti-corrosion of steel materials.
[0003] In the prior art, the components of the radiator mainly include heat sinks, heat pipes, heat fins, fans, etc. A number of heat sinks are arranged in parallel, and the heat pipes are arranged on both sides of the heat sinks along the distribution direction of the heat sinks and connect the heat sinks together. A lifting device is fixedly installed on the top of the factory building, and a hammock is installed at the bottom of the lifting device. A sling with a chain is installed at the bottom of the hammock, and the steel parts to be galvanized are connected through the chain on the sling, and the lifting device provides power to lift the steel parts.
[0004] Conventional chain hoists lift the radiator steel parts after rust removal, lower them and immerse them in molten zinc at about 500℃. However, although the radiator steel structure is large in volume, it is light in weight. When the radiator is directly lowered into the zinc liquid by the hoist, the radiator steel structure is easily affected by buoyancy and floats out of the zinc liquid surface, which in turn affects the uniformity of hot-dip galvanizing of the radiator. Utility Model Content
[0005] In order to improve the uniformity of hot-dip galvanizing of a radiator, the present application provides an anti-floating hanger for hot-dip galvanizing.
[0006] The present application provides an anti-floating lifting device for hot-dip galvanizing, which adopts the following technical solution:
[0007] An anti-floating sling for hot-dip galvanizing comprises a plurality of groups of frames, wherein a connecting ear is arranged on both sides of a connecting beam at the top of each frame corresponding to the bottom of a hammock, and a connecting piece is arranged between the connecting ear and the connecting beam, and a cross beam for pressing a radiator is arranged at the bottom of each frame, and a fixing piece for connecting the radiator is arranged on the cross beam.
[0008] By adopting the above technical solution, the operator first installs the connecting ears on the two hangers on the connecting beam at the bottom of the hammock through the connecting piece, and then places the radiator between the two hangers, and uses the fixing piece to fix the heat pipes on both sides of the radiator after rust removal on the corresponding crossbeam. Start the lifting device, the lifting device drives the hammock to move down, and then the lowered hammock drives the hanger to move down synchronously. When the radiator moves down synchronously with the hanger and immerses in the zinc liquid pool, but is affected by buoyancy and wants to float out of the liquid surface, the crossbeam pushes the radiator into the zinc liquid, so that it is completely immersed in the zinc liquid, thereby improving the uniformity of the galvanizing of the radiator.
[0009] Optionally, a plurality of through holes are distributed along the length direction of the connecting beam, and the connecting member includes a latch rod that passes through the connecting ear and the through hole and a locking nut that is threadably sleeved on the latch rod.
[0010] By adopting the above technical solution, the distance between the two hangers is adjusted according to the size of the radiator, the two adjacent hangers are moved to a suitable position, the corresponding connecting ears and through holes are inserted through the latch rod, and then the locking nut is threadedly rotated on the latch rod until it is tightly against the connecting ears and the side walls of the connecting beam, thereby achieving flexible installation between the hanger and the hammock, thereby improving the application scope of the device.
[0011] Optionally, a plurality of support rods are distributed along the length of the cross beam in the frame, and a plurality of support frames are vertically abutted between the cross beam and the frame.
[0012] By adopting the above technical solution, when the radiator is immersed in zinc liquid, the force of floating up is offset by the pressure applied by the crossbeam. However, during this process, the crossbeam is prone to deformation. At this time, the provision of a number of support rods not only improves the connection strength between the frame and the crossbeam, but also enhances the stability of the pressure applied to the radiator when the crossbeam moves downward, thereby reducing the possibility of deformation of the crossbeam.
[0013] Optionally, a cavity is opened in the top beam of the frame along the length direction.
[0014] By adopting the above technical solution, the opening of the cavity reduces the weight of the frame and reduces the lifting weight burden of the lifting device.
[0015] Optionally, the fixing member is an iron wire that is wound around the cross beam and the heat dissipation pipe on one side of the radiator.
[0016] By adopting the above technical solution, the iron wire becomes a low-cost but efficient fixing part, and the iron wire is resistant to high temperature. The heat dissipation pipe is fixed on the crossbeam by winding the iron wire and simultaneously immersed in zinc liquid for hot-dip galvanizing. This can maintain the stability of the connection between the crossbeam and the radiator and is not likely to affect the uniformity and comprehensiveness of the overall galvanizing of the radiator.
[0017] Optionally, the fixing part includes a bidirectional screw rod rotatably set in the frame, a limit plate rotatably mounted on the two threaded sections of the bidirectional screw rod, and a limit column arranged on opposite sides of the two limit plates. The bidirectional screw rod is located on the side close to the cross beam, and the axial direction of the bidirectional screw rod is parallel to the length direction of the cross beam. The limit plate is slidably mounted on the cross beam, and the limit column is plugged into and fitted with the inner ring at one end of the heat dissipation pipe.
[0018] By adopting the above technical solution, the radiator is first placed between the two hangers, and the bidirectional screw is driven to rotate. The rotation of the bidirectional screw drives the two limit plates to rotate relative to each other. Since the crossbeam guides and limits the limit plates, the two limit plates can only slide relative to each other until the limit columns are inserted into the two ends of the heat pipe, which plays a role in fixing the radiator. The radiator is fixed automatically instead of manually twisting the wire to fix the radiator, which improves the work efficiency of fixing the radiator.
[0019] Optionally, one end of the bidirectional screw rod extending out of the frame is sleeved with a driven wheel, a driving wheel is rotatably arranged on the side wall on the top of the frame and located on the same side as the driven wheel, a chain is jointly sleeved between the driving wheel and the driven wheel, and a servo motor is coaxially arranged on the rotating shaft of the driving wheel.
[0020] By adopting the above technical solution, the servo motor is started, and the output shaft of the servo motor rotates to drive the driving wheel to rotate synchronously. Through the kinetic energy transmission of the chain, the rotation of the driving wheel drives the driven wheel to rotate synchronously. At this time, the bidirectional lead screw starts to rotate synchronously with the rotation of the driven wheel, thereby improving the working efficiency of fixing the radiator.
[0021] Optionally, a through groove is provided between the limiting column and the limiting plate in parallel with the axial direction of the heat dissipation pipe, and the through groove is located at the bottom of the limiting column.
[0022] By adopting the above technical solution, the through groove at the bottom of the limit plate is set, so that when the radiator is immersed in the zinc liquid, the heat dissipation tube is plated with zinc; when the sling is lifted with the radiator, the zinc liquid immersed in the heat dissipation tube can also flow out from the through groove, thereby reducing the possibility of operators being scalded by the high-temperature zinc liquid accumulated in the tube when removing the galvanized radiator, improving the integrity of the galvanizing of the radiator and ensuring the personal safety of the operators during operation.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. First, the operator installs the connecting ears on the two hangers on the connecting beam at the bottom of the hammock through the connecting pieces, and then places the radiator between the two hangers, and uses the fixing pieces to fix the heat pipes on both sides of the radiator that have been rust-free to the corresponding crossbeams. Start the lifting device, the lifting device drives the hammock to move down, and then the lowered hammock drives the hanger to move down synchronously. When the radiator moves down synchronously with the hanger and immerses in the zinc liquid pool, it is affected by buoyancy and wants to float out of the liquid surface. The crossbeam pushes the radiator against the zinc liquid, making it completely immersed in the zinc liquid, thereby improving the uniformity of the galvanizing of the radiator;
[0025] 2. According to the size of the radiator, the distance between the two hangers is adjusted, and the two adjacent hangers are moved to a suitable position. The corresponding connecting ears and through holes are inserted through the latch rod, and then the locking nut is sleeved on the latch rod through thread rotation until it is tightly against the connecting ears and the side wall of the connecting beam, so as to realize flexible installation between the hanger and the hammock, thereby improving the application range of the device;
[0026] 3. When the radiator is immersed in zinc liquid, the force of floating up is offset by the pressure exerted by the beam. However, during this process, the beam is prone to deformation. At this time, the setting of several support rods not only improves the connection strength between the frame and the beam, but also enhances the stability of the pressure exerted on the radiator when the beam moves downward, thereby reducing the possibility of deformation of the beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of Example 1 of the present application during actual use.
[0028] Figure 2 It is a schematic diagram of the overall structure of Example 1 of the present application.
[0029] Figure 3 It is a schematic diagram of Example 2 of the present application during actual use.
[0030] Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application.
[0031] Description of reference numerals:
[0032] 01. hammock; 011. connecting beam; 0111. through hole; 02. radiator; 021. heat pipe; 1. frame; 11. cavity; 12. support plate; 2. connecting ear; 3. connector; 31. latch rod; 32. locking nut; 4. crossbeam; 5. support rod; 6. fixing piece; 61. iron wire; 62. two-way screw rod; 63. limit plate; 64. limit column; 641. through slot; 7. servo motor; 71. driving wheel; 8. driven wheel; 9. chain. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-4 This application is described in further detail.
[0034] The embodiment of the present application discloses an anti-floating lifting device for hot-dip galvanizing.
[0035] Example 1
[0036] Reference Figure 1 and Figure 2 An anti-floating sling for hot-dip galvanizing includes a frame 1, which is arranged in an inverted U shape. Two connecting ears 2 are fixedly arranged on the top of the frame 1. The two connecting ears 2 are respectively located on both sides of the connecting beam 011 at the bottom of the hammock 01, and a connecting piece 3 is arranged between the two connecting ears 2 and the connecting beam 011. A cavity 11 is opened in the top beam of the frame 1 along the length direction. A cross beam 4 is fixedly arranged at the inner bottom of the frame 1 along the length direction of the cavity 11, and a plurality of support rods 5 are fixedly arranged inside the frame 1 along the length of the cross beam 4. In this embodiment, three support rods 5 are taken as an example. The three support rods 5 are all arranged vertically and distributed along the length direction of the cross beam 4. Each support rod 5 abuts between the bottom wall of the top beam and the top wall of the cross beam 4. A fixing piece 6 for connecting the radiator 02 is also arranged on the cross beam 4.
[0037] Reference Figure 1 In order to fix the radiator 02, two hangers are usually required on the hammock 01. The operator first installs the connecting ears 2 on the two hangers on the connecting beam 011 at the bottom of the hammock 01 through the connecting piece 3, and then places the radiator 02 between the two hangers, and distributes the heat pipes 021 on both sides of the radiator 02 after rust removal through the fixing piece 6 and fixes them on the corresponding crossbeam 4 using the fixing piece 6. When the lifting device drives the hammock 01 to move downward, the hammock 01 moves downward and drives the frame 1 to move downward synchronously. At this time, the crossbeam 4 on the frame 1 presses the radiator 02 into the zinc liquid pool through the fixing piece 6, so that the radiator 02 is hot-dip galvanized in the zinc liquid pool.
[0038] Reference Figure 1 and Figure 2 The connecting piece 3 of this embodiment includes a latch rod 31 and a locking nut 32. A plurality of through holes 0111 are distributed along the length direction on the connecting beam 011 at the bottom of the hammock 01. The latch rod 31 slides through the connecting ear 2 and the corresponding through hole 0111. At this time, the locking nut 32 is threadedly rotated on the latch rod 31 and abuts against the side wall of the connecting ear 2.
[0039] Reference Figure 1 and Figure 2 In this embodiment, the fixing member 6 is a wire 61 , which is wound around the cross beam 4 and the heat pipe 021 on the radiator 02 , and a plurality of the wires 61 are arranged along the length direction of the cross beam 4 .
[0040] The implementation principle of an anti-floating lifting device for hot-dip galvanizing in an embodiment of the present application is as follows: when the lifting device drives the hammock 01 to move downward, the hammock 01 moves downward and drives the frame 1 to move downward synchronously. At this time, the crossbeam 4 on the frame 1 is fixed to the radiator 02 by a plurality of iron wires 61, and then the radiator 02 is pressed and immersed in the zinc liquid pool, so that the radiator 02 is hot-dip galvanized in the zinc liquid pool; after the radiator 02 is immersed in the zinc liquid pool for a certain period of time, the lifting device drives the hammock 01 to move upward, and the upward movement of the hammock 01 drives the frame 1 to move upward synchronously. At this time, the radiator 02 is taken away from the zinc liquid pool by the crossbeam 4 through the iron wires 61. After a period of air drying, the galvanizing operation of the radiator 02 is completed.
[0041] Example 2
[0042] Reference Figure 3 and Figure 4 The difference between this embodiment and the embodiment 1 is that the fixing member 6 is different. The fixing member 6 of this embodiment includes a bidirectional screw rod 62, a limit plate 63 and a limit column 64. The bidirectional screw rod 62 is located on a side close to the cross beam 4 and is rotatably arranged in the frame 1. One end of the bidirectional screw rod 62 extending out of the frame 1 is coaxially fixedly sleeved with a driven wheel 8. A support plate 12 is fixedly arranged on the side wall of the frame 1 on the same side as the driven wheel 8. A servo motor 7 is fixedly arranged on the support plate 12. The output shaft of the servo motor 7 rotates through the support plate 12 and extends between the support plate 12 and the side wall of the frame 1. The output shaft of the servo motor 7 is coaxially fixedly sleeved with a driving wheel 71. A chain 9 is sleeved between the driving wheel 71 and the driven wheel 8.
[0043] Reference Figure 3 and Figure 4 The limiting plate 63 is provided with one corresponding to the two threads of the bidirectional screw rod 62, and is sleeved on the bidirectional screw rod 62 by rotating the threads, and the limiting plate 63 is also slidably sleeved on the corresponding crossbeam 4. The limiting column 64 is provided with one corresponding to the two pipe openings of the heat dissipation pipe 021, and is plugged and matched with the inner ring of the heat dissipation pipe 021, and is integrally formed on the opposite sides of the two limiting plates 63.
[0044] Reference Figure 3 and Figure 4 In order to coat the inner wall of the heat dissipation tube 021 with zinc liquid, a through groove 641 is provided between the limiting column 64 and the limiting plate 63 parallel to the axial direction of the heat dissipation tube 021 , and the through groove 641 is provided near the bottom of the limiting column 64 .
[0045] The implementation principle of Example 2 is as follows: first, the radiator 02 is placed between two hangers, and the servo motor 7 is started. The output shaft of the servo motor 7 rotates to drive the driving wheel 71 to rotate synchronously. Through the kinetic energy transmission of the chain 9, the rotation of the driving wheel 71 drives the driven wheel 8 to rotate synchronously. At this time, the bidirectional screw rod 62 starts to rotate synchronously with the rotation of the driven wheel 8. The rotation of the bidirectional screw rod 62 drives the two limit plates 63 to rotate relative to each other. Since the cross beam 4 guides and limits the limit plates 63, the two limit plates 63 can only slide relative to each other until the limit columns 64 are inserted into the two ends of the heat pipe 021. At this time, the radiator 02 and the cross beam 4 are fixed.
[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An anti-floating lifting device for hot-dip galvanizing, characterized in that: The invention comprises a plurality of groups of frames (1), wherein a connection ear (2) is arranged on both sides of a connection beam (011) at the top of each frame (1) corresponding to the bottom of a hammock (01), and a connection piece (3) is arranged between the connection ear (2) and the connection beam (011); a cross beam (4) for pressing a radiator (02) is arranged at the bottom of each frame (1), and a fixing piece (6) for connecting the radiator (02) is arranged on the cross beam (4).
2. The anti-floating lifting device for hot-dip galvanizing according to claim 1, characterized in that: The connecting beam (011) is provided with a plurality of through holes (0111) distributed along the length direction, and the connecting member (3) comprises a latch rod (31) penetrating the connecting ear (2) and the through hole (0111) and a locking nut (32) which is threadably sleeved on the latch rod (31).
3. The anti-floating lifting device for hot-dip galvanizing according to claim 1, characterized in that: A plurality of support rods (5) are distributed along the length of the cross beam (4) in the frame (1), and a plurality of support frames are vertically abutted between the cross beam (4) and the frame (1).
4. The anti-floating lifting device for hot-dip galvanizing according to claim 1, characterized in that: A cavity (11) is provided in the top beam of the frame (1) along the length direction.
5. The anti-floating lifting device for hot-dip galvanizing according to claim 1, characterized in that: The fixing member (6) is an iron wire (61) which is wound around the cross beam (4) and the heat dissipation pipe (021) on one side of the radiator (02).
6. The anti-floating lifting device for hot-dip galvanizing according to claim 1, characterized in that: The fixing member (6) comprises a bidirectional screw (62) rotatably arranged in the frame (1), a limit plate (63) rotatably sleeved on two threaded sections of the bidirectional screw (62), and a limit column (64) arranged on opposite sides of the two limit plates (63); the bidirectional screw (62) is located on a side close to the cross beam (4), and the axial direction of the bidirectional screw (62) is parallel to the length direction of the cross beam (4); the limit plate (63) is slidably sleeved on the cross beam (4), and the limit column (64) is plugged into and fitted with the inner ring of one end of the heat dissipation pipe (021).
7. The anti-floating lifting device for hot-dip galvanizing according to claim 6, characterized in that: One end of the bidirectional screw rod (62) extending out of the frame (1) is sleeved with a driven wheel (8); a driving wheel (71) is rotatably arranged on a side wall on the top of the frame (1) and located on the same side as the driven wheel (8); a chain (9) is sleeved between the driving wheel (71) and the driven wheel (8); and a servo motor (7) is coaxially arranged on the rotating shaft of the driving wheel (71).
8. The anti-floating lifting device for hot dip galvanizing according to claim 6, characterized in that: A through groove (641) is provided between the limiting column (64) and the limiting plate (63) parallel to the axial direction of the heat dissipation tube (021), and the through groove (641) is located at the bottom of the limiting column (64).