Cantilever crane for overhauling ascension pipe

Abstract

The utility model relates to the technical field of coke oven equipment, in particular to a cantilever crane for overhauling an ascending pipe, which comprises a stand column, a cantilever is vertically mounted at the top end of the stand column, a cantilever track is arranged at the bottom of the cantilever, an electric hoist is connected onto the cantilever track in a sliding manner, and a lifting hook is mounted on the electric hoist. A lifting tool is hung on the lifting hook, the lifting tool comprises a lifting beam, the two ends of the bottom of the lifting beam are connected with lifting short loop chains, the other ends of the lifting short loop chains are connected with a clamp, and the clamp is connected with the outer side of the ascending pipe in a clamping mode. According to the cantilever crane disclosed by the utility model, besides the original hoisting function, the hoisting tool suitable for hoisting the ascending pipe is additionally arranged, so that the problem that the hoisting space of the cantilever crane for overhauling the ascending pipe is not enough due to the height limitation of a coal tower is effectively solved, and the safety coefficient of work is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coke oven equipment, in particular to a cantilever crane for inspecting and repairing rising pipes. Background Art

[0002] The top loading coal car runs on the top of the coke oven and is used to take the clean coal from the coal tower and send it to the carbonization chamber where coal needs to be loaded for coal loading. The riser maintenance crane is one of the mechanisms of the top loading coal car and is used to lift the riser that needs to be repaired.

[0003] Since the top-loading coal car needs to pass through the coal tower, the height of the riser maintenance crane is limited. The traditional cantilever crane for inspecting the riser adopts a lifting method of clamping the riser with a steel rope. Due to the height limitation of the coal tower, not only the lifting height of the cantilever crane is insufficient, but also the angle of the wire rope is too large, making it impossible to lift safely, and it is easy to cause the wire rope to break, which does not meet the requirements of safe lifting operations. Utility Model Content

[0004] In view of the above problems, the utility model provides a cantilever crane for inspecting and repairing riser pipes. In addition to the original lifting function, it also adds lifting tools suitable for lifting riser pipes, which effectively solves the problem of insufficient lifting space for the cantilever crane for inspecting and repairing riser pipes caused by the height limit of the coal tower, and improves the safety factor of the work.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a cantilever crane for inspecting and repairing rising pipes, comprising a column, a cantilever is vertically installed on the top of the column, a cantilever track is provided at the bottom of the cantilever, an electric hoist is slidably connected to the cantilever track, a hook is installed on the electric hoist, a lifting tool is hung on the hook, the lifting tool comprises a lifting beam, short lifting link chains are connected to the two ends of the bottom of the lifting beam, the other end of the short lifting link chain is connected to a clamp, and the clamp is clamped and connected to the outer side of the rising pipe.

[0006] As a further solution of the utility model: the bottom end of the column is fixedly connected to a base, and the base is fixedly connected to the top of the top-loading coal car.

[0007] As a further solution of the utility model: a hook hole is provided in the middle of the top end of the handle.

[0008] As a further solution of the utility model: the edges of the top of the handle beam and the top of the clamp are provided with grooves, a connecting rod is provided at the opening of the groove, and the lifting short link chain is installed between the handle beam and the clamp through the connecting rod.

[0009] As a further solution of the utility model: a flange is provided on the outer side of the riser, and the clamp is clamped and connected to the flange on the outer side of the riser.

[0010] As a further solution of the utility model: the clamp includes a first clamp and a second clamp, the first clamp and the second clamp are both arc-shaped, one end of the first clamp is rotatably connected to one end of the second clamp, the other ends of the first clamp and the second clamp are provided with connecting buckles, and the connecting buckles are screwed together by bolts.

[0011] As a further solution of the present invention: U-shaped grooves are provided on the inner sides of the first clamping plate and the second clamping plate, and anti-slip pads are provided in the U-shaped grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the cantilever crane for inspecting and repairing riser pipes of the utility model, in addition to the original lifting function, also adds lifting tools suitable for lifting riser pipes. When the riser pipe needs to be inspected and lifted, the flange part of the riser is clamped with a clamp, and the cantilever crane hooks the lifting beam to complete the lifting, saving lifting space and successfully completing the lifting operation. It effectively solves the lifting problem of traditional cantilever cranes for inspecting and repairing riser pipes due to the limited height of the coal tower, and improves the safety factor during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall structure diagram of a conventional cantilever crane for inspecting riser pipes;

[0014] Figure 2 This is the overall structural diagram of the cantilever crane for inspecting and repairing the rising pipe of the utility model;

[0015] Figure 3 This is the structural diagram of the lifting tool of the utility model;

[0016] Figure 4 This is a structural diagram of the connection between the lifting beam and the lifting short link chain of the utility model;

[0017] Figure 5 This is the structural diagram of the fixture of the utility model;

[0018] In the figure: 1. column; 2. cantilever; 3. cantilever track; 4. electric hoist; 5. hook; 6. lifting tool; 61. lifting beam; 62. lifting short link chain; 63. clamp; 631. first clamp; 632. second clamp; 633. connecting buckle; 634. bolt; 635. U-shaped groove; 636. anti-slip pad; 7. rising pipe; 8. base; 9. top loading coal car; 10. hook hole; 11. groove; 12. flange; 13. connecting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] refer to Figures 1 to 5 A cantilever crane for inspecting rising pipes comprises a column 1, a cantilever 2 is vertically installed on the top of the column 1, a cantilever track 3 is provided at the bottom of the cantilever 2, an electric hoist 4 is slidably connected to the cantilever track 3, a hook 5 is installed on the electric hoist 4, a lifting tool 6 is hung on the hook 5, the lifting tool 6 comprises a lifting beam 61, and a lifting short link chain 62 is connected to the two ends of the bottom of the lifting beam 61, the other end of the lifting short link chain 62 is connected to a clamp 63, and the clamp 63 is clamped and connected to the outer side of the rising pipe 7.

[0021] The bottom end of the column 1 is fixedly connected to a base 8 , and the base 8 is fixedly connected to the top of a top-loading coal car 9 .

[0022] A hook hole 10 is provided at the middle of the top end of the handle beam 61 .

[0023] A groove 11 is provided at the bottom of the handle beam 61 and the top edge of the clamp 63 , a connecting rod 13 is provided at the opening of the groove 11 , and the lifting short link chain 62 is installed between the handle beam 61 and the clamp 63 through the connecting rod 13 .

[0024] A flange 12 is provided on the outer side of the riser pipe 7 , and the clamp 63 is clamped and connected to the flange 12 on the outer side of the riser pipe 7 .

[0025] The clamp 63 includes a first clamping plate 631 and a second clamping plate 632. The first clamping plate 631 and the second clamping plate 632 are both arc-shaped. One end of the first clamping plate 631 is rotatably connected to one end of the second clamping plate 632. The other ends of the first clamping plate 631 and the second clamping plate 632 are provided with connecting buckles 633, and the connecting buckles 633 are screwed together by bolts 634.

[0026] A groove 635 is formed inside the first clamping plate 631 and the second clamping plate 632 , and an anti-slip pad 636 is formed inside the groove 635 .

[0027] Workflow: When the riser 7 needs to be hoisted for inspection, clamp the flange 12 on the outside of the riser 7 with the clamp 63, tighten the bolt 634, and hook the hook 5 on the cantilever crane to hook the hook hole 10 on the top of the lifting beam 61 to complete the lifting, saving lifting space and successfully completing the lifting operation.

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cantilever crane for inspecting a riser pipe, comprising a column (1), a cantilever (2) being vertically mounted on the top of the column (1), a cantilever track (3) being disposed at the bottom of the cantilever (2), an electric hoist (4) being slidably connected to the cantilever track (3), and a hook (5) being mounted on the electric hoist (4), wherein: A lifting tool (6) is suspended on the lifting hook (5), and the lifting tool (6) comprises a lifting beam (61). The two ends of the bottom of the lifting beam (61) are connected to a lifting short link chain (62), and the other end of the lifting short link chain (62) is connected to a clamp (63), and the clamp (63) is clamped and connected to the outer side of the rising pipe (7).

2. The cantilever crane for inspecting rising pipes according to claim 1, characterized in that: The bottom end of the column (1) is fixedly connected to a base (8), and the base (8) is fixedly connected to the top of a top-loading coal car (9).

3. The cantilever crane for inspecting rising pipes according to claim 2, characterized in that: A hook hole (10) is provided at the middle of the top end of the handle (61).

4. The cantilever crane for inspecting the rising pipe according to claim 3 is characterized in that: A groove (11) is provided at the bottom of the handle (61) and the edge of the top of the clamp (63), a connecting rod (13) is provided at the opening of the groove (11), and the lifting short-link chain (62) is installed between the handle (61) and the clamp (63) via the connecting rod (13).

5. The cantilever crane for inspecting the rising pipe according to claim 4, characterized in that: The outer side of the riser pipe (7) is provided with a flange (12), and the clamp (63) is clamped and connected to the flange (12) on the outer side of the riser pipe (7).

6. The cantilever crane for inspecting the rising pipe according to claim 5, characterized in that The clamp (63) comprises a first clamping plate (631) and a second clamping plate (632), wherein the first clamping plate (631) and the second clamping plate (632) are both arc-shaped, one end of the first clamping plate (631) is rotatably connected to one end of the second clamping plate (632), and the other ends of the first clamping plate (631) and the second clamping plate (632) are provided with connecting buckles (633), and the connecting buckles (633) are screwed together by bolts (634).

7. The cantilever crane for inspecting rising pipes according to claim 6, characterized in that: U-shaped grooves (635) are provided inside the first clamping plate (631) and the second clamping plate (632), and anti-slip pads (636) are provided inside the U-shaped grooves (635).

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