Special lifting appliance for graphite ring

Abstract

The utility model discloses a special lifting appliance for a graphite ring, which belongs to the field of lifting appliances and comprises two clamping rings, limiting components are fixedly mounted on the outer walls of the clamping rings, each limiting component consists of a square rod, a return spring and an anti-falling plate, the return springs are sleeved on the square rods, and the anti-falling plates are fixedly mounted at the outer ends of the square rods. A movable frame is slidably mounted on the square rod and located on the inner side of the reset spring, the movable frame is composed of a base plate, two mounting plates and a guide plate, and the two mounting plates are symmetrically and fixedly mounted at the outer end of the base plate. The Z-shaped limiting plates can block the upper side and the lower side of the graphite ring, so that the fixing stability of the graphite ring can be improved, the graphite ring is not prone to falling and being damaged when being hoisted by the hoisting tool, and meanwhile, the safety threat to personnel, equipment or buildings below can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of lifting tools, in particular to a special lifting tool for graphite rings. Background Art

[0002] Large graphite rings refer to graphite products with relatively large sizes, usually having high density, high strength, high purity, and good high-temperature resistance, corrosion resistance, wear resistance, etc. These properties enable large graphite rings to play an important role in industrial fields that need to withstand high temperature, high pressure, or corrosive environments. Large graphite rings are often used as mechanical seals, such as sealing rings for equipment such as pumps, compressors, and reactors, which can effectively prevent medium leakage and ensure the safe operation of the equipment. In the metallurgical industry, large graphite rings can be used for sealing, heat insulation, and conductive components of high-temperature furnaces, such as electrode holders and furnace door seals of electric furnaces. In the chemical production process, large graphite rings can be used for sealing and lining of corrosion-resistant pipelines, valves, and reactors to resist the erosion of various chemical media. In the energy field, large graphite rings can be used for sealing and heat insulation components in high-temperature and high-pressure environments such as nuclear power plants and thermal power plants, such as sealing rings of nuclear reactors and seals of steam turbines. Large graphite rings often need to be lifted during the processing, and at this time, lifting tools are required. When using a lifting tool to lift a graphite ring, the stability of the graphite ring fixed by the lifting tool will directly affect the safety of the graphite ring lifting. When using a lifting tool to lift a graphite ring, if the stability of the graphite ring fixed by the lifting tool is poor, it is easy to cause the graphite ring to fall and be damaged, and at the same time, it will also pose a serious safety threat to the personnel, equipment, or buildings below. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a special lifting tool for graphite rings, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A special lifting tool for graphite rings includes two snap rings. A limiting component is fixedly installed on the outer wall of each snap ring. The limiting component consists of a square rod, a return spring, and a anti-detachment plate. The return spring is sleeved on the square rod, and the anti-detachment plate is fixedly installed at the outer end of the square rod. A moving frame is slidably installed on the square rod and inside the return spring. The moving frame consists of a base plate, mounting plates, and guide plates. There are two mounting plates, which are symmetrically and fixedly installed at the outer end of the base plate. There are two guide plates, which are respectively fixedly installed at one end of the two mounting plates. An adjusting screw is rotatably installed on the mounting plate, and a Z-shaped limiting plate is installed on the adjusting screw and the guide plate.

[0006] Preferably, the two snap rings can be fixedly connected by two bolts. The two snap rings are respectively fixedly installed on two lifting arms, and the two lifting arms are both fixedly installed on a cross beam. A lifting lug is fixedly installed on the cross beam.

[0007] Preferably, the square rod on the limiting component is fixedly installed on the outer wall of the snap ring.

[0008] Preferably, a square hole is formed in the base plate of the moving frame, the square hole penetrates the inside and outside of the base plate, and the base plate is slidably installed on the square rod through the square hole. A through hole is formed in the mounting plate, and the through hole penetrates the mounting plate up and down.

[0009] Preferably, the adjusting screw rod is rotatably installed in the through hole formed in the mounting plate.

[0010] Preferably, the Z-shaped limiting plate is located on the upper and lower sides of the moving frame. A sleeve hole and a threaded hole are formed in the Z-shaped limiting plate. Both the sleeve hole and the threaded hole penetrate the Z-shaped limiting plate up and down. The Z-shaped limiting plate is installed on the adjusting screw rod through the threaded hole formed therein, and the Z-shaped limiting plate is movably sleeved on the guide plate through the sleeve hole formed therein.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By arranging a limiting component, a moving frame, an adjusting screw rod and a Z-shaped limiting plate on the snap ring, when the snap ring clamps and hoists a graphite ring, the Z-shaped limiting plate can block the upper and lower sides of the graphite ring, thereby improving the stability of the fixed graphite ring. Furthermore, when the graphite ring is hoisted by the hoisting tool, it is not easy to fall and be damaged, and at the same time, the safety threat to the personnel, equipment or buildings below can be reduced; the cooperation between the adjusting screw rod and the moving frame can adjust the height of the Z-shaped limiting plate, so that the Z-shaped limiting plate can limit and fix graphite rings with different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 is of the utility model Figure 1 an enlarged view of part A;

[0015] Figure 3 is a schematic diagram of the structure of the limiting component and the moving frame of the utility model;

[0016] Figure 4 is a schematic diagram of the structure of the adjusting screw rod and the Z-shaped limiting plate of the utility model.

[0017] In the figure: 1, snap ring; 2, limit component; 3, moving frame; 4, adjusting screw; 5, Z-shaped limit plate; 6, bolt; 7, boom; 8, cross beam; 9, lifting lug; 10, square rod; 11, return spring; 12, anti-disengagement plate; 13, base plate; 14, square hole; 15, mounting plate; 16, guide plate; 17, through hole; 18, sleeve hole; 19, threaded hole. Detailed implementation manners

[0018] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown in the figure, a special lifting tool for graphite rings includes two snap rings 1. The two snap rings 1 can be fixedly connected by two bolts 6. The two snap rings 1 are respectively fixedly installed on two lifting arms 7. The two lifting arms 7 are both fixedly installed on a cross beam 8. A lifting lug 9 is fixedly installed on the cross beam 8. A limiting component 2 is fixedly installed on the outer wall of the snap ring 1. The limiting component 2 is composed of a square rod 10, a return spring 11 and a retaining plate 12. The return spring 11 is sleeved on the square rod 10. The retaining plate 12 is fixedly installed at the outer end of the square rod 10. A moving frame 3 is slidably installed on the square rod 10 and inside the return spring 11. The moving frame 3 is composed of a base plate 13, mounting plates 15 and guide plates 16. There are two mounting plates 15 which are symmetrically and fixedly installed at the outer end of the base plate 13. There are two guide plates 16 which are respectively fixedly installed at one end of the two mounting plates 15. An adjusting screw 4 is rotatably installed on the mounting plate 15. A Z-shaped limiting plate 5 is installed on the adjusting screw 4 and the guide plate 16. When hoisting the graphite ring, the hook of the crane can be hung on the lifting lug 9, and then the lifting tool is moved towards the graphite ring, so that finally the graphite ring is located inside the two snap rings 1. Then, the two snap rings 1 can be fixed together by using bolts 6, so that the two snap rings 1 surround and fix the graphite ring. At this time, the Z-shaped limiting plate 5 will block the upper and lower sides of the graphite ring. Then, the graphite ring can be lifted by using lifting equipment; before hoisting, the distance between the upper and lower Z-shaped limiting plates 5 can be adjusted according to the thickness of the graphite ring, so that the distance between the upper and lower Z-shaped limiting plates 5 is greater than the thickness of the graphite ring, so that the upper and lower Z-shaped limiting plates 5 can respectively block the upper and lower sides of the graphite ring; when the presence of the Z-shaped limiting plate 5 hinders the snap ring 1 from being sleeved outside the graphite ring, the moving frame 3 can be pulled outwards on the square rod 10. At this time, the moving frame 3 will drive the adjusting screw 4 and the Z-shaped limiting plate 5 to move outwards. By setting the limiting component 2, the moving frame 3, the adjusting screw 4 and the Z-shaped limiting plate 5 on the snap ring 1, when the snap ring 1 clamps and hoists the graphite ring, the Z-shaped limiting plate 5 can block the upper and lower sides of the graphite ring, so that the stability of the fixed graphite ring can be improved. Therefore, when the graphite ring is hoisted by this lifting tool, it is not easy to fall and be damaged, and at the same time, the safety threat to the personnel, equipment or buildings below can be reduced. The adjusting screw 4 cooperates with the moving frame 3 to be able to adjust the height of the Z-shaped limiting plate 5, so that the Z-shaped limiting plate 5 can limit and fix graphite rings of different heights.

[0020] Further, the square rod 10 on the limiting component 2 is fixedly installed on the outer wall of the snap ring 1. A square hole 14 is opened on the base plate 13 of the moving frame 3. The square hole 14 penetrates through the base plate 13 inside and outside, and the base plate 13 is slidably installed on the square rod 10 through the square hole 14. A through hole 17 is opened on the mounting plate 15. The through hole 17 penetrates through the mounting plate 15 up and down. When the moving frame 3 slides outwards on the square rod 10, the moving frame 3 will compress and deform the return spring 11. When the moving frame 3 is released, under the elastic force of the return spring 11, the moving frame 3 can slide inwards on the square rod 10.

[0021] Further, the adjusting screw 4 is rotatably installed in the through hole 17 formed in the mounting plate 15. The Z-shaped limiting plates 5 are located on the upper and lower sides of the moving frame 3. A sleeve hole 18 and a threaded hole 19 are formed in the Z-shaped limiting plate 5. Both the sleeve hole 18 and the threaded hole 19 penetrate the Z-shaped limiting plate 5 up and down. The Z-shaped limiting plate 5 is installed on the adjusting screw 4 through the threaded hole 19 formed therein, and the Z-shaped limiting plate 5 is movably sleeved on the guide plate 16 through the sleeve hole 18 formed therein. The method for adjusting the distance between the upper and lower Z-shaped limiting plates 5 is to simply rotate the adjusting screw 4 on the moving frame 3. Since the Z-shaped limiting plate 5 is restricted by the guide plate 16, the Z-shaped limiting plate 5 will not rotate along with the adjusting screw 4. Therefore, as the adjusting screw 4 rotates, the Z-shaped limiting plate 5 will move on the adjusting screw 4. When the distance between the upper and lower Z-shaped limiting plates 5 is appropriate, stop rotating the adjusting screw 4.

[0022] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. The protection scope claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Special lifting tool for graphite rings, comprising two snap rings (1), characterized in that: A limiting component (2) is fixedly installed on the outer wall of the snap ring (1). The limiting component (2) is composed of a square rod (10), a return spring (11), and an anti - detachment plate (12). The return spring (11) is sleeved on the square rod (10), and the anti - detachment plate (12) is fixedly installed at the outer end of the square rod (10). A moving frame (3) is slidably installed on the square rod (10) and inside the return spring (11). The moving frame (3) is composed of a base plate (13), mounting plates (15), and guide plates (16). There are two mounting plates (15), which are symmetrically and fixedly installed at the outer end of the base plate (13). There are two guide plates (16), which are respectively fixedly installed at one end of the two mounting plates (15). An adjusting screw rod (4) is rotatably installed on the mounting plate (15), and a Z - shaped limiting plate (5) is installed on the adjusting screw rod (4) and the guide plate (16).

2. The special lifting tool for graphite rings according to claim 1, wherein: The two snap rings (1) can be fixedly connected by two bolts (6). The two snap rings (1) are respectively fixedly installed on two lifting arms (7), and the two lifting arms (7) are both fixedly installed on a cross beam (8). A lifting lug (9) is fixedly installed on the cross beam (8).

3. The special lifting tool for graphite rings according to claim 2, wherein: The square rod (10) on the limiting component (2) is fixedly installed on the outer wall of the snap ring (1).

4. The special lifting tool for graphite rings according to claim 3, characterized in that: A square hole (14) is formed in the base plate (13) of the moving frame (3). The square hole (14) penetrates through the base plate (13) inside and outside, and the base plate (13) is slidably installed on the square rod (10) through the square hole (14). A through hole (17) is formed in the mounting plate (15), and the through hole (17) penetrates through the mounting plate (15) vertically and horizontally.

5. The special lifting tool for graphite rings according to claim 4, characterized in that: The adjusting screw rod (4) is rotatably installed in the through hole (17) formed in the mounting plate (15).

6. The special lifting tool for graphite rings according to claim 5, wherein: The Z - shaped limiting plate (5) is located on the upper and lower sides of the moving frame (3). A sleeve hole (18) and a threaded hole (19) are formed in the Z - shaped limiting plate (5). Both the sleeve hole (18) and the threaded hole (19) penetrate through the Z - shaped limiting plate (5) vertically and horizontally. The Z - shaped limiting plate (5) is installed on the adjusting screw rod (4) through the threaded hole (19) formed thereon, and the Z - shaped limiting plate (5) is movably sleeved on the guide plate (16) through the sleeve hole (18) formed thereon.

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